Page 1 This publication includes the latest production information available before printing. Honda Motor Co., Ltd. reserves the right to make changes at any time without notice and without incurring any obligation. No part of this publication may be reproduced without written permission.
Page 2 2008 Honda TRX450ER (electric starter) Honda TRX450R (kickstarter) SPORTRAX 450R OWNER’S MANUAL FOR OFF-ROAD USE ONLY This vehicle is designed and manufactured for off-road use only. USA only: It conforms to US EPA Noise Emission regulations, but does not conform to Federal Motor Vehicle Safety Standards or US EPA On Highway Exhaust Emission regulations, and operation on public streets, roads, or highways is illegal.
Page 3 Introduction Congratulations on choosing your Honda ATV. When you own a Honda, you’re part of a worldwide family of satisfied − customers people who appreciate Honda’s reputation for building quality into every product. Your Honda was designed as a recreational ATV for off-road use by one rider only.
Page 4 Honda dealer knows your ATV best and is dedicated to your complete satisfaction. Please report any change of address or ownership to your Honda dealer so we will be able to contact you concerning important production information.
Page 5: A Few Words About Safety
A Few Words About Safety Your safety, and the safety of others, is very important. And operating this ATV safely is an important responsibility. To help you make informed decisions about safety, we have provided operating procedures and other information on labels and in this manual. This information alerts you to potential hazards that could hurt you or others.
Page 6 A Few Words About Safety These signal words mean: You WILL be KILLED or SERIOUSLY HURT if you don’t follow instructions. You CAN be KILLED or SERIOUSLY HURT if you don’t follow instructions. You CAN be HURT if you don’t follow instructions.
Page 7 Contents These pages give an overview of the contents of your owner’s manual. The first page of each section lists the topics covered in that section. ATV Safety ..................Important safety information you should know, plus a look at the safety-related labels on your ATV.
Page 8 Contents Servicing Your Honda ..............Why your ATV needs regular maintenance, what you need to know before servicing your Honda, an owner maintenance schedule, and instructions for specific maintenance and adjustment items. Tips ....................How to store and transport your ATV and how to be an environmentally-responsible rider.
Page 10: Atv Safety
ATV Safety This section presents some of the most important information and recommendations to help you ride your ATV safely. Please take a few moments to read these pages. This section also includes information about the location of safety labels on your ATV. Important Safety Information ..............
Page 11 Important Safety Information − Your ATV can provide many years of service and pleasure if you take responsibility for your own safety and understand the challenges you can meet while riding. There is much that you can do to protect yourself when you ride. You’ll find many helpful recommendations throughout this manual.
Page 12: Atv Safety
Important Safety Information Ride Off-Road Only Your ATV is designed and manufactured for off-road use only. The tires are not made for pavement, and the ATV does not have turn signals and other features required for use on public roads. If you need to cross a paved or public road, get off and walk your ATV across.
Page 13 So don’t drink and ride, and don’t let your friends drink and ride either. Keep Your Honda in Safe Condition It’s important to keep your ATV properly maintained and in safe riding condition. Having a breakdown can be difficult, especially if you are stranded off-road far from your base.
Page 14: Safety Labels
Anyone who rides the vehicle should read and understand this information before riding. The labels should be considered permanent parts of the vehicle. If a label comes off or becomes hard to read, contact your Honda dealer for replacements. ATV Safety...
Page 15 Safety Labels USA only ATV Safety...
Page 16 Safety Labels ATV Safety...
Page 17 Safety Labels (For Canada) ATV Safety...
Page 18: Table Of Contents
Operation Component Locations ............10 Indicators ....................13 High Coolant Temperature Indicator ..........13 Neutral Indicator (TRX450ER only) ..........14 Controls & Features ................15 Fuel Valve ..................15 Choke Knob ..................
Page 19: Operation Component Locations
Operation Component Locations parking brake lock lever parking brake pin headlight dimmer headlight switch ignition switch switch engine stop switch clutch lever/ parking brake front brake lever lever TRX450R only throttle lever hot start lever start button (TRX450ER only) Indicators & Controls...
Page 20: Indicators & Controls
Operation Component Locations TRX450R only kickstarter rear brake pedal Indicators & Controls...
Page 21 Operation Component Locations flag pole bracket seat lock lever fuel valve choke knob shift lever Indicators & Controls...
Page 22: Indicators
If the engine is stopping, the indicator will goes off at the same time. If the indicator does not come on when it should, have your Honda dealer check for a burned-out bulb or other problems.
Page 23: Neutral Indicator (Trx450Er Only)
The neutral indicator ( ) will light when the transmission is in neutral and the ignition switch is ON ( If the indicator does not come on when it should, have your Honda dealer check for a burned-out bulb or other problems.
Page 24: Controls & Features
Controls & Features Fuel Valve LEFT SIDE (1) fuel valve The manual fuel valve ( ) is located on the left side under the fuel tank. The three-way fuel valve is used to control the flow of fuel from the fuel tank to the carburetor.
Page 25: Choke Knob
Controls & Features Choke Knob LEFT SIDE (1) choke knob (A) fully ON (B) fully OFF The choke knob ( ) may be used when starting the engine. See page Indicators & Controls...
Page 26: Hot Start Lever (Trx450R Only)
Controls & Features Hot Start Lever (TRX450R only) LEFT HANDLEBAR (1) hot start lever The hot start lever (1) may be used when starting a warm engine. See page Indicators & Controls...
Page 27: Ignition Switch
Controls & Features Ignition Switch The ignition switch ( ) is used for starting and stopping the engine (page ). Insert the key and turn it to the right for the ON ( position. Key Position Function ON ( Electrical circuits on. OFF ( No electrical circuits function.
Page 28: Start Button (Trx450Er Only)
Controls & Features Start Button (TRX450ER only) LEFT HANDLEBAR (1) start button START The start button ( ) is used for starting the engine. Pushing the button in starts the engine. See Starting Procedure, page When the start button is pushed, the starter motor will crank the engine.
Page 29: Kickstarter (Trx450R Only)
Controls & Features Kickstarter (TRX450R only) RIGHT SIDE (1) kickstarter The kickstarter ( ) is used to start the engine. To operate, swing the kickstarter out from its stored position and depress it through its entire stroke. See Starting Procedure, page Indicators &...
Page 30: Engine Stop Switch
) position to start the engine, and it should normally remain in the RUN ( ) position even when the engine is OFF. (TRX450ER only) If your ATV is stopped with the ignition switch ON ( ) and the engine stop switch OFF ( ), the battery will discharge.
Page 31: Headlight Switch
Controls & Features Headlight Switch LEFT HANDLEBAR (1) headlight switch (2) headlight dimmer switch The headlight switch ( ) is used to turn the headlight ON ( ) or OFF ). To operate, turn the switch to ON ( ) or OFF ( Headlight Dimmer Switch The headlight dimmer switch ( ) is used to change between the high and low beams of the headlight.
Page 32: Throttle Lever
Controls & Features Throttle Lever RIGHT HANDLEBAR (1) throttle lever (A) to open the throttle The throttle controls engine rpm (speed). To increase engine rpm, press the throttle lever ( ) with your thumb. To reduce engine rpm, release pressure on the throttle lever. The throttle will automatically return to the closed position (engine idle) when you remove your thumb.
Page 33: Front Brake Lever
Controls & Features Front Brake Lever The front brake lever is used to slow or stop your ATV. To operate, pull the lever. For information on braking techniques, see page Rear Brake Pedal The rear brake pedal is used to slow or stop your ATV. To operate, depress the pedal.
Page 34: Parking Brake
Controls & Features Parking Brake LEFT HANDLEBAR (1) lock lever (3) clutch lever/parking brake lever (2) parking brake pin (A) to lock The lock lever ( ) and parking brake pin ( ) on the clutch lever/parking brake lever ( ) allows it to be used as a parking brake. To operate, push down and hold the parking brake pin, squeeze the clutch lever/parking brake lever and then lock it with the lock lever.
Page 35: Flag Pole Bracket
Flag Pole Bracket RIGHT REAR (1) flag pole bracket Flag poles are optional equipment available from your Honda dealer. To mount a pole in the bracket ( ), follow the instructions that come with the flag pole kit. Flag poles are required in some riding areas. Check local regulations before riding.
Page 36: Before Riding
Before Riding Before each ride, you need to make sure you and your Honda are both ready to ride. To help get you prepared, this section discusses how to evaluate your riding readiness, what items you should check on your ATV, and adjustments to make for your comfort, convenience, or safety.
Page 37: Are You Ready To Ride
Are You Ready to Ride? Before you ride your ATV for the first time, we urge you to: Read this owner’s manual and the labels on your ATV carefully. Make sure you understand all the safety messages. Know how to operate all the controls. Before each ride, be sure: You feel well and are in good physical and mental condition.
Page 38 Are You Ready to Ride? An open-face helmet offers some protection, but a full-face helmet offers more. Regardless of the style, look for a DOT (Department of Transportation) sticker on any helmet you buy (USA only). Always wear a face shield or goggles to protect your eyes and help your vision. Operating this ATV without wearing an approved motorcycle helmet, eye protection, and protective clothing could increase your...
Page 39: Rider Training
Beginning and inexperienced operators should complete the certified training course offered by Honda. They should then regularly practice the skills learned in the course and the operating techniques described in the owner’s manual.
Page 40: Age Recommendation
Are You Ready to Ride? Age Recommendation The minimum recommended age for this ATV model is 16. For safety, never let children under 16 years old operate this vehicle. A child using an ATV that is not recommended for their age could lose vehicle control while riding, resulting in severe injury or death.
Page 41: No Alcohol Or Drugs
Are You Ready to Ride? No Alcohol or Drugs Alcohol, drugs and ATVs don’t mix. Even a small amount of alcohol − can impair your ability to operate an ATV safely. Likewise, drugs − even if prescribed by a physician can be dangerous while operating an ATV.
Page 42: Is Your Atv Ready To Ride
If your ATV has overturned or been involved in a collision, do not ride the vehicle until it has been inspected by your Honda dealer. There may be damage or other problems you cannot see. Improperly maintaining this ATV or failing to...
Page 43 Is Your ATV Ready to Ride? Fuel Check the level and add fuel (page ) if needed. Also make sure the fuel fill cap is securely fastened. Check for leaks. Tires Use a gauge to check the air pressure. Adjust if needed.
Page 44 Move the handlebar right and left and check that there is no excessive backlash. Remember, be sure to take care of any problem you find, or have your Honda dealer correct it before you ride. Before Riding...
Page 45: Load Limits & Guidelines
Load Limits & Guidelines Your Honda was designed as a rider-only ATV. It was not designed to carry a passenger or cargo. A passenger or cargo could interfere with your ability to move around to maintain your balance and control of the ATV.
Page 46: Load Limits
Load Limits & Guidelines Load Limits Following are the load limits for your ATV: There is a limit to how much weight can be carried on your ATV. The following load limit applies to standard equipment only. Modifying your ATV, using non-standard equipment, or riding on terrain that is not flat and smooth could further reduce these limits.
Page 47: Loading Guidelines
Load Limits & Guidelines Loading Guidelines As discussed on page , we recommend that you do not carry any cargo on this ATV. However, if you decide to carry cargo, ride at reduced speeds and follow these common-sense guidelines. Carrying cargo or pulling a trailer will affect how your ATV handles and greatly reduce its ability in accelerating, braking and making turns and other maneuvers.
Page 48: Accessories & Modifications
Honda cannot test all other accessories, you must be personally responsible for proper selection, installation, and use of non-Honda accessories. Check with your Honda dealer for assistance and always follow these guidelines: Make sure the accessory does not obscure any lights, reduce ground clearance, limit suspension travel or steering travel, or interfere with operating any controls.
Page 49: Modifications
Accessories & Modifications (TRX450ER) Do not add any electrical equipment that will exceed the vehicle’s electrical system capacity (page ). A blown fuse can cause a loss of lights or engine power (page Modifications We strongly advise you not to remove any original equipment or modify your ATV in any way that would change its design or operation.
Page 50 Basic Operation & Riding This section gives basic riding instructions, including how to start and stop your engine, how to use the throttle and brakes, and what to do when you’re through riding. To protect your new engine and enjoy optimum performance and service life, refer to Break-in Guidelines (page For information about carburetor adjustment for riding at high altitude, see page...
Page 51: Safe Riding Precautions
Safe Riding Precautions Before riding your ATV for the first time, please review the ATV Saf ety section beginning on page 1, and the Bef ore Riding section beginning on page Even if you have ridden other ATVs, take time to become familiar with how this ATV works and handles.
Page 52: Keep Hands And Feet On Controls
Safe Riding Precautions You should never ride your ATV on public streets, roads or highways, even if they are not paved. Drivers of street vehicles may have difficulty seeing and avoiding you, which could lead to a collision. In many states it is illegal to operate ATVs on public streets, roads and highways.
Page 53: Control Speed
Safe Riding Precautions Control Speed Riding at excessive speed increases the chance of an accident. In choosing a proper speed, you need to consider the capability of your vehicle, the terrain, visibility and other operating conditions, plus your own skills and experience. Operating this ATV at excessive speeds increases your chances of losing control of the ATV, which can result in an accident.
Page 54: Use Care On Unfamiliar Or Rough Terrain
Safe Riding Precautions Use Care on Unfamiliar or Rough Terrain Before riding in a new area, always check the terrain thoroughly. Don’t ride fast on unfamiliar terrain or when visibility is limited. (It’s sometimes difficult to see obstructions like hidden rocks, bumps, or holes in time to react.) Failure to use extra care when operating this ATV on unfamiliar terrain could result in the ATV...
Page 55: Do Not Perform Stunts
Safe Riding Precautions Never ride past the limit of visibility. Maintain a safe distance between your ATV and other off-road vehicles. Always exercise caution, and use extra care on rough, slippery and loose terrain. Failure to use extra care when operating on excessively rough, slippery or loose terrain could cause loss of traction or vehicle control, which could result in an accident, including an...
Page 56: Starting & Stopping The Engine
Your ATV’s exhaust contains poisonous carbon monoxide gas which can collect rapidly in an enclosed area and cause illness or death. (TRX450ER only) Your ATV is equipped with a gear position starter cut-off system. The −...
Page 57: Preparation
Starting & Stopping the Engine Preparation (TRX450ER) (1) fuel valve (3) neutral indicator (2) ignition switch (4) engine stop switch Before starting, select a level surface and lock the parking brake (page Turn the fuel valve ( ) and ignition switch ( ) to ON ( Confirm the following: The transmission is in neutral (neutral indicator ( ) ON).
Page 58 Starting & Stopping the Engine (TRX450R) (1) fuel valve (3) handlebar (2) ignition switch (4) engine stop switch Before starting, select a level surface and lock the parking brake (page Turn the fuel valve ( ) and ignition switch ( ) to ON ( Turn the handlebar ( ) all the way to left.
Page 59: Starting Procedure
Opening the throttle, even slightly, while starting the engine, may cause engine kick-back and engine damage. To restart a warm engine, follow the procedure for ‘‘High Air Temperature.’’ (TRX450ER only) The starter motor will operate when the transmission is in neutral or pull in the clutch lever. − −...
Page 60 Starting & Stopping the Engine With the throttle closed, press the start button ( ). Pressing the electric start button for more than 5 seconds at a time may cause the starter to overheat and damage the starter. Release the start button for approximately 10 seconds before pressing it again.
Page 61 Kick from the top of the stroke through to the bottom with a rapid, continuous motion. Allowing the kickstarter to snap back freely against the pedal stop can damage the engine case. Low Air Temperature 10°C (50°F) or below (TRX450ER & TRX450R) − Follow steps under ‘‘Normal Air Temperature.’’...
Page 62 Starting & Stopping the Engine Warm Engine Starting: (TRX450R only) LEFT HANDLEBAR (1) hot start lever Turn the fuel valve ON. Shift the transmission into neutral. Push the hot start lever ( ) and kick-start the engine. (Do not open the throttle.) As soon as the engine starts, release the hot start lever.
Page 63: Flooded Engine
If the engine fails to start after repeated attempts, it may be flooded with excess fuel. To clear a flooded engine: (TRX450ER) Move the engine stop switch to OFF ( Push the choke knob right all the way to fully OFF.
Page 64: How To Stop The Engine
Starting & Stopping the Engine How to Stop the Engine Normal Engine Stop (TRX450ER) To stop the engine, make sure the transmission is in neutral by checking that the neutral indicator lights, and turn the ignition switch OFF ( If your ATV is stopped with the engine stop switch OFF (...
Page 65: Shifting Gears
Shifting Gears GEAR SHIFTING SEQUENCE The shift lever is located near the left footpeg. One full stroke of the shift lever shifts the transmission to the next higher or lower gear in the shifting sequence. The shift lever automatically returns to the horizontal position when released.
Page 66 Shifting Gears With the throttle closed while the engine is idling, pull in the clutch lever and depress the shift lever to shift into 1st gear. Release the rear brake pedal, gradually release the clutch lever, and increase engine speed by gradually opening the throttle. When the speed increases, close the throttle, pull in the clutch lever, shift to 2nd gear by raising the shift lever, and gradually release the clutch lever while gradually opening the throttle.
Page 67: Braking
Braking Your ATV is equipped with disc braking systems which are hydraulically activated. Depressing the brake pedal applies the rear disc brake. Operating the brake lever applies the two front disc brakes. As a general rule, the front braking system provides about 70 percent of total stopping power.
Page 68 Braking Your ability to brake in a turn and to brake hard in an emergency situation are important riding skills. When descending a long, steep grade, use engine compression braking by downshifting, with intermittent use of both brakes. Continuous brake application can overheat the brakes and reduce their effectiveness.
Page 69: Riding Your Atv
Riding Your ATV Making Turns Learn how to turn your ATV properly. Practice the techniques outlined in this section on level ground and at low speeds until you are confident in making turns. Turning improperly can make the ATV go out of control, causing a collision or overturn.
Page 70 Riding Your ATV Lean your body to the inside of a turn and forward. To make a turn on level ground: Steer the handlebar and lean your body toward the inside of the turn. Leaning helps balance the vehicle, and it feels more comfortable.
Page 71: Skidding Or Sliding
Riding Your ATV Skidding or Sliding The terrain surface can be a major factor affecting turns. Skidding during a turn is more likely to occur on slippery surfaces, such as snow, ice, mud and loose gravel. If you skid on ice, you may lose all directional control.
Page 72: Riding Up Hills
Riding Your ATV Riding Up Hills The ATV’s ability to safely climb hills largely depends on the rider’s skill and judgment. Begin by practicing on smooth, gentle slopes. As you gain experience, you’ll learn the hazards and your own limitations. You may then proceed to ride on more difficult terrain.
Page 73 Riding Your ATV Shift weight forward when climbing hills. Always check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. To climb a hill, take a running start in an appropriate gear and speed for the conditions.
Page 74 Riding Your ATV Stalling the ATV and/or Rolling Backwards: If you incorrectly estimate climbing capability or terrain conditions, the ATV may not have enough power or traction to continue uphill. If this happens, the ATV can stall and/or roll backwards. Stalling, rolling backwards or improperly dismounting while climbing a hill could result in the ATV overturning.
Page 75 Riding Your ATV What to do after the ATV has stalled or rolled backwards: If the hill is too steep or too slippery, or if you have any doubt whether you can safely walk the ATV back down the hill, leave the vehicle where it is and get help.
Page 76: Riding Down Hills
Riding Your ATV Riding Down Hills It’s usually advisable to descend hills with the ATV pointed straight downhill. Avoid angles that would cause the vehicle to lean sharply to one side. Going down a hill improperly could cause loss of control or cause the ATV to overturn. Always follow proper procedures for going down hills as described in this owner’s manual.
Page 77: Crossing Or Turning On Hills Or Slopes
Riding Your ATV When you’ve selected a safe downhill path, shift into a lower gear, shift your weight back with your arms extended and braced against the handlebar, then go down slowly with the throttle closed. Use mainly the rear brake to control speed. Avoid using either the front brake or rear brake hard or abruptly when riding down hills.
Page 78 Riding Your ATV Crossing Hills or Slopes To maintain balance and stability when riding across a slope, you need to shift weight toward the uphill side of the vehicle. To do this, move your body off the center of the seat and lean toward the uphill side.
Page 79: Riding Over Obstacles
Riding Your ATV Riding Over Obstacles Before operating in a new area, check for obstacles. Watch out for bumps, rain ruts, potholes and other obstacles in the terrain. When you approach any obstacle, reduce your speed and be prepared to stop. Never try to ride over large obstacles, such as large rocks or fallen logs.
Page 80: Riding Through Water
Riding Your ATV Riding Through Water Your ATV is designed to travel through water up to approximately 10 inches (254 mm) deep. Before crossing a stream, make sure the water is not too deep or flowing too fast. The ATV tires have some ability to float. Operating this ATV through deep or fast-flowing water may cause a loss of traction and loss of control, which could lead to an accident.
Page 81: Parking
Parking Look for level parking area. Make sure the ground surface is firm. After bringing your ATV to a stop, hold the brakes while you shift into neutral. Set the parking brake. Turn the ignition switch OFF ( If you’re finished riding for the day, turn the fuel valve OFF. If it is necessary to start the engine when your ATV is stopped on a grade in gear, rock the vehicle back and forth to allow shifting the transmission into neutral.
Page 82: Servicing Your Honda
Maintenance, replacement or repair of the emission control devices and systems may be performed by any ATV repair establishment or individual using parts that are ‘‘certified’’ to EPA standards. Bef ore You Service Your Honda The Importance of Maintenance ............
Page 83 Suspension ..................127 Brakes ....................133 Tires ....................143 Engine Guard & Skid Plates ..............150 Drive Chain ..................151 Electrical Battery (TRX450ER only) ..............158 Appearance Care ................. 163 Servicing Your Honda...
Page 84: The Importance Of Maintenance
Frequent servicing of the air cleaner is especially important to help you avoid a possible costly engine repair. If your ATV overturns or is involved in a crash, be sure your Honda dealer inspects all major parts, even if you are able to make some repairs.
Page 85: Maintenance Safety
Other tasks that are more difficult and require special tools are best performed by professionals. Removing the wheels should normally be handled only by a Honda technician or other qualified mechanic. Instructions are included in this manual only to assist in emergency service.
Page 86: Important Safety Precautions
Keep cigarettes, sparks, and flames away from all fuel-related parts. Remember that your Honda dealer knows your ATV best and is fully equipped to maintain and repair it. To ensure the best quality and reliability, use only new Honda Genuine Parts or other equivalents for repair and replacement.
Page 87: Maintenance Schedule
Other items involve more extensive procedures and may require special training, tools, and equipment. We recommend that you have your Honda dealer perform these tasks unless you have advanced mechanical skills and the required tools and equipment.
Page 88 ) may require more technical information and tools. Consult your Honda dealer. ＊ Should be serviced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual (page ＊＊...
Page 89: Maintenance Procedures
ENGINE IDLE SPEED RADIATOR COOLANT NOTE 3 COOLING SYSTEM NOTE 2 Should be serviced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual (page Servicing Your Honda...
Page 90 STEERING SYSTEM − Should be serviced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual (page In the interest of safety, we recommend these items be serviced only by your Honda dealer.
Page 91: Maintenance Record
Miles (km) or Date Performed By: Notes hours 100 (150) or 600 (1,000) or 1,200 (2,000) or 1,800 (3,000) or 2,400 (4,000) or 3,000 (5,000) or 3,600 (6,000) or 4,200 (7,000) or 4,800 (8,000) or Servicing Your Honda...
Page 92: Maintenance Component Locations
Maintenance Component Locations front brake fluid reservoir clutch lever/ front brake lever parking brake lever TRX450R only hot start lever fuel fill cap throttle lever Servicing Your Honda...
Page 93 (engine idle speed) coolant reserve tank front suspension compression damping adjuster rear brake fluid reservoir front suspension rebound damping adjuster rear brakelight switch rear brake pedal front brake caliper front suspension rebound damping adjuster Servicing Your Honda...
Page 94 (TRX450ER only) engine oil drain bolt drive chain transmission oil rear suspension rebound drain bolt damping adjuster Servicing Your Honda...
Page 95: Tool Kit
To access the tool kit, remove the seat (see page ), and then remove the rubber band. An optional, larger tool kit may be available. Check with your Honda dealer’s parts department. UNDER SEAT (1) tool kit...
Page 96: Owner's Manual Storage
Make sure the owner’s manual and tool kit are fastened securely with the rubber band. Be careful not to flood this area when washing your ATV. REAR (1) owner’s manual (3) rubber band (2) storage compartment (4) plastic cover Servicing Your Honda...
Page 97: Seat Removal
( ). Slide the seat back and up. Installation Insert the front prongs ( ) into the hooks ( ) on the frame and press the studs into the grommets. Press down on the seat until it locks. Servicing Your Honda...
Page 98: Fuel
If pinging or spark knock occurs at a steady engine speed under normal load, change brands of gasoline. If pinging or spark knock persists, consult your Honda dealer. Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt, dust, or water in the fuel tank.
Page 99 ON position after refueling to avoid running out of fuel with no reserve. Refueling Procedure Refer to Saf ety Precautions on page (1) fuel fill cap (3) handlebar cover hole (2) breather tube (4) filler neck Servicing Your Honda...
Page 100 After refueling, turn the fuel fill cap clockwise. Insert the breather tube into the handlebar cover hole. If the fuel valve was set to RES, turn the fuel valve ON. If you replace the fuel fill cap, use only a Honda Genuine replacement part. Servicing Your Honda...
Page 101: Engine Oil & Filter
Change the engine oil as specified in the maintenance schedule on page . When running in very dusty conditions, oil changes should be performed more frequently than specified in the maintenance schedule. Servicing Your Honda...
Page 102 SAE 10W-30 JASO T 903 standard ＊ suggested oil Pro Honda GN4 4-stroke oil (USA & Canada), or Honda 4-stroke oil (Canada only), or an equivalent motorcycle oil. ＊ Suggested oils are equal in performance to SJ oils that are not labeled as energy conserving on the circular API service label.
Page 103 There are two classes: MA and MB. Oil conforming to the standard is labeled on the oil container. For example, the following label shows the MA classification. (1) code number of the sales company of the oil (2) oil classification Servicing Your Honda...
Page 104 Reinstall the engine oil filler cap. Check for oil leaks. Running the engine with an improper oil level can cause serious engine damage. LEFT SIDE (1) upper level mark (H) (3) inspection window (2) lower level mark (L) (4) engine oil filler cap Servicing Your Honda...
Page 105 This procedure requires mechanical skill and professional tools such as a torque wrench, as well as a means for disposing of the drained fluid (page ). If you do not have the skills or the tools, see your Honda dealer. Drain the Engine Oil: −...
Page 106 Check that the oil filter cover O-ring ( ) is in good condition and then install a new oil filter. Use only the Honda Genuine oil filter or a filter of equivalent quality specified for your model. Using the wrong Honda filter or a non-Honda filter which is not of equivalent quality may cause engine damage.
Page 107 ATV upright on firm, level ground. If necessary, add more oil but do not overfill. Check that there are no oil leaks. If a torque wrench is not used for installation, see your Honda dealer as soon as possible to verify proper assembly. Servicing Your Honda...
Page 108: Transmission Oil
JASO T 903 standard ＊ suggested oil Pro Honda HP Trans Oil, Pro Honda GN4 4-stroke oil or an equivalent. ＊ Suggested oils are equal in performance to SJ oils that are not labeled as energy conserving on the circular API service label.
Page 109 There are two classes: MA and MB. Oil conforming to the standard is labeled on the oil container. For example, the following label shows the MA classification. (1) code number of the sales company of the oil (2) oil classification Servicing Your Honda...
Page 110 9 lbf·ft (12 N·m , 1.2 kgf·m) Install the transmission oil filler cap. Running the engine with an improper oil level can cause serious engine damage. RIGHT SIDE (1) transmission oil filler cap (2) oil check bolt Servicing Your Honda...
Page 111 Pour the drained oil into a suitable container and dispose of it in an approved manner (page Improper disposal of drained f luids is harmf ul to the environment. LEFT SIDE CRANKCASE (1) transmission oil drain plug (2) sealing washer Servicing Your Honda...
Page 112 Checking & Adding Transmission Oil (see page Check that there are no oil leaks. If a torque wrench is not used for installation, see your Honda dealer as soon as possible to verify proper assembly. Servicing Your Honda...
Page 113: Coolant
Maintaining the coolant will allow the cooling system to work properly and prevent freezing, overheating, and corrosion. Coolant Recommendation Use Pro Honda HP coolant or an equivalent high quality ethylene glycol antifreeze containing corrosion protection inhibitors specifically recommended for use in aluminum engines. Check the antifreeze container label.
Page 114 ( ). It should be between the UPPER ( ) and LOWER ( ) level marks. If the reserve tank is empty, or if coolant loss is excessive, check for leaks and see your Honda dealer for repair. (cont’d) Servicing Your Honda...
Page 115 Add coolant to the reserve tank as required to bring the coolant level to the UPPER level mark. FRONT (4) steering cover (5) reserve tank cap After adding coolant, install the reserve tank cap and steering cover. Servicing Your Honda...
Page 116 Refer to Saf ety Precautions on page Coolant should be replaced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual (page Removing the radiator cap while the engine is hot can cause the coolant to spray out, seriously scalding you.
Page 117 Check the air passages for clogging or damage. Remove insects, mud, or any obstruction with low water pressure. Have the radiator checked by your Honda dealer if the air flow is restricted over more than 20% of the radiator surface.
Page 118 Wash the radiator grill and radiator core ( ). High pressure water (or air) can damage the radiator core. LEFT SIDE (6) radiator grill (7) radiator core Install the radiator grill, right and left shrouds and steering cover in the reverse order of removal. Servicing Your Honda...
Page 119: Air Cleaner
Your ATV’s air cleaner has very specific performance requirements. Use a new Honda Genuine air cleaner specified for your model or an air cleaner of equal quality. Using the wrong air cleaner may result in premature engine damage.
Page 120 Air Cleaner Cleaning UNDER SEAT (1) retainer clips (2) air cleaner housing cover Remove the seat (page Unlatch the retainer clips ( ). Remove the air cleaner housing cover ( ). (cont’d) Servicing Your Honda...
Page 121 Pour clean Pro Honda Foam Filter Oil or an equivalent (Canada: Honda Foam Filter Oil or an equivalent) over the entire surface of the air cleaner. Use both hands to evenly spread the oil into the air cleaner.
Page 122 Install the clamp. Insert the air cleaner assembly into the air cleaner housing. Fasten the screw B. Install the stay and fasten the screw A. Install the air cleaner housing cover and latch the retainer clips. Servicing Your Honda...
Page 123: Throttle
After adjustment, check for smooth operation of the throttle lever from fully closed to fully open in all steering positions. Make sure the engine starts. If the engine does not start or engine stall, see your Honda dealer. Servicing Your Honda...
Page 124: Throttle Inspection
If the cable is kinked or chafed, have it replaced. Check the cables for tension or stress in all steering positions. Lubricate the cables with a commercially-available cable lubricant to prevent premature wear and corrosion. Servicing Your Honda...
Page 125: Clutch System
Inspection Check freeplay. Freeplay: 3/8 13/16 in (10 20 mm) − − If necessary, adjust to the specified range. Improper freeplay adjustment can cause premature clutch wear. Servicing Your Honda...
Page 126 Tighten the lock nut and check the freeplay again. Pull on the dust cover. If proper adjustment cannot be obtained or the clutch does not work correctly, the cable or clutch friction discs may be worn. See your Honda dealer. Servicing Your Honda...
Page 127 Hold the lower adjusting nut ( ) and loosen the lower lock nut ( ) at the lower end of the cable. Turn the lower adjusting nut to obtain the specified freeplay. Hold the lower adjusting nut and tighten the lower lock nut. Check the adjustment. Servicing Your Honda...
Page 128 Check the clutch lever/parking brake lever and clutch cable for loose connections or other damage. If the clutch cable is worn or kinked, have it replaced by your Honda dealer. Other Inspections & Lubrication Check that the clutch lever/parking brake lever assembly is positioned properly and the securing bolts are tight.
Page 129: Engine Idle Speed
Engine Idle Speed The best way to assure proper carburetion is to see your Honda dealer for regularly scheduled servicing, including carburetor adjustment. Remember, idle speed adjustment is not a ‘‘cure-all’’ for other problems in your engine’s fuel-delivery system. Adjusting the idle will not compensate for a fault elsewhere.
Page 130: Spark Plug
‘‘leaf-type feeler gauge.’’ Do not adjust the spark plug gap. If the gap is out of specification, replace the spark plug with a new one. Servicing Your Honda...
Page 131: Spark Plug Inspection/Replacement
Make sure that a 1.2 mm wire-type feeler gauge cannot be inserted between the spark plug gap ( ). If the gauge fits in the gap, replace the plug with a new one. RIGHT SIDE (1) spark plug cap (2) spark plug gap Servicing Your Honda...
Page 132 An improperly tightened spark plug can damage the engine. If a plug is too loose, a piston may be damaged. If a plug is too tight, the threads may be damaged. Reinstall the spark plug cap. Take care to avoid pinching any cables or wires. Servicing Your Honda...
Page 133: Valves
For those who are mechanically proficient and have the proper tools, instructions on adjusting valve clearances are given in the official Honda Service Manual. All others should have valves adjusted by your Honda dealer. Servicing Your Honda...
Page 134: Spark Arrester
Remove the bolts ( ), the muffler tail cover ( ), the spark arrester ( ), and the gasket ( ) from the muffler ( ). REAR (1) bolts (4) gasket (2) muffler tail cover (5) muffler (3) spark arrester (cont’d) Servicing Your Honda...
Page 135: Servicing Your Honda (Cont'd)
The spark arrester must be free of breaks and holes. Replace, if necessary. Check the gasket. Replace, if necessary. (6) spark arrester screen Install the gasket to the muffler, the spark arrester, and the muffler tail cover and tighten the bolts securely. Servicing Your Honda...
Page 136: Suspension
The way you ride your ATV and the type of ride you want to experience can also influence your suspension needs. You may adjust the rebound and compression damping of the front and rear suspension systems. Servicing Your Honda...
Page 137 The shock absorber assemblies include a damper unit that contains high pressure nitrogen gas. Do not attempt to disassemble, service, or dispose of the damper; see your Honda dealer. The instructions found in this owner’s manual are limited to adjustments of the shock assemblies.
Page 138 To Reduce Rebound Damping (SOFT): For a light load and smooth road conditions, turn the adjuster counterclockwise toward SOFT (S). To Increase Rebound Damping (HARD): For a firmer ride and rough road conditions, turn the adjuster clockwise toward HARD (H). Servicing Your Honda...
Page 139 To Reduce Compression Damping (SOFT): For a light load and smooth road conditions, turn the adjuster counterclockwise toward SOFT (S). To Increase Compression Damping (HARD): For a firmer ride and rough road conditions, turn the adjuster clockwise toward HARD (H). Servicing Your Honda...
Page 140 To Reduce Rebound Damping (SOFT): For a light load and smooth road conditions, turn the adjuster counterclockwise toward SOFT (S). To Increase Rebound Damping (HARD): For a firmer ride and rough road conditions, turn the adjuster clockwise toward HARD (H). Servicing Your Honda...
Page 141 To Reduce Compression Damping (SOFT): For a light load and smooth road conditions, turn the adjuster counterclockwise toward SOFT (S). To Increase Compression Damping (HARD): For a firmer ride and rough road conditions, turn the adjuster clockwise toward HARD (H). Servicing Your Honda...
Page 142: Brakes
Honda DOT 4 Brake Fluid The recommended brake fluid is Honda DOT 4 Brake Fluid, or any brake fluid of equal quality and performance. Use fresh brake fluid from a sealed container. Be sure to read the label before opening the sealed container.
Page 143 Do not add or replace brake fluid, except in an emergency. If you do add fluid, have your Honda dealer check the system as soon as possible. Brake f luid can damage plastic and painted surf aces. Handle with care.
Page 144 It should be between the UPPER ( ) and LOWER ( ) level mark. If the level is at or below the LOWER level mark, check the brake pads for wear (page Worn brake pads should be replaced. If the pads are not worn, have your brake system inspected for leaks. Servicing Your Honda...
Page 145 Brakes Other Inspections Make sure there are no fluid leaks. Check for deterioration or cracks in the hoses and fittings. If the hoses are worn or cracked, have them replaced by your Honda dealer. Servicing Your Honda...
Page 146 Check the wear indicator ( ). If the wear indicator aligns with the edge of the reference mark ( ), both pads must be replaced, see your Honda dealer for this replacement. Always inspect each pad of the right and left front brake calipers.
Page 147 Loosen the lock nut ( ), push the front brake lever forward ( ), and turn the adjust bolt ( ). Apply the brake, release it, then spin the wheel and check that it rotates freely. Repeat this procedure several times. Fasten the lock nut. Servicing Your Honda...
Page 148 Remove the clip ( ), the nut ( ), and screw A ( ). Remove the screws B ( ) and right side mudguard ( ). Installation Install the right side mudguard in the reverse order of removal. Servicing Your Honda...
Page 149 ). Adjustment is done by turning the adjusting nut ( ). Turn the nut in direction ( ) if the switch operates too late and in direction ( ) if the switch operates too soon. RIGHT SIDE (1) brakelight switch (2) adjusting nut Servicing Your Honda...
Page 150 Loosen the lock nut ( ) on the parking brake arm ( ) and turn the adjusting bolt ( ) clockwise until you feel resistance. Then turn the adjusting bolt ( ) 1/8 counterclockwise, and tighten the lock nut ( ). (cont’d) Servicing Your Honda...
Page 151 Check the clutch lever/parking brake lever and parking brake cable for loose connections or other damages. If the parking brake cable is worn or kinked, have it replaced by your Honda dealer. Other Inspections & Lubrication Check that the clutch lever/parking brake lever assembly is positioned properly and the securing bolts are tight.
Page 152: Tires
Always select your riding area with care. The following pages give detailed information on how and when to check your air pressure, how to inspect your tires for wear and damage, and our recommendations for tire repair and replacement. Servicing Your Honda...
Page 153 Overinflated tires make your ATV ride harshly, are more prone to damage from surface hazards, and wear unevenly. Make sure the air valve caps are secure. If necessary, install new caps. Servicing Your Honda...
Page 154 Be sure to check tire pressure at the riding site, since changes in altitude can affect air pressure. The recommended ‘‘cold’’ tire pressures are: FRONT REAR RECOMMENDED 4.0 psi (27.5 kPa , 4.7 psi (32.5 kPa , PRESSURE 0.275 kgf/cm ) 0.325 kgf/cm ) Servicing Your Honda...
Page 155 Cuts, slits, or cracks in the tires. Replace the tire if you can see fabric or cord. Nails or other foreign objects embedded in the side of the tire or tread. Excessive tread wear. Servicing Your Honda...
Page 156 ( ). For best performance, you should replace a tire before the tread depth at the center reaches the following limits: front 3/16 in (4 mm) rear 3/16 in (4 mm) Servicing Your Honda...
Page 157: Tire Repair
If you choose to have a tire repaired, be sure the repair work is performed by a professional. If you have a tire professionally repaired at a non-Honda facility, we recommend that you have the work checked by your Honda dealer.
Page 158: Tire Replacement
When you replace a tire, remember: Have the tire replaced by your Honda dealer if possible. If you have a tire professionally replaced at a non-Honda facility, we recommend that you have the work checked by your Honda dealer. Servicing Your Honda...
Page 159: Engine Guard & Skid Plates
Check the guard and plates for cracks, damage or looseness at intervals shown in the Maintenance Schedule. Have the engine guard and skid plates replaced if they are cracked or damaged. If the guard and plate bolts are loose, tighten them securely. Servicing Your Honda...
Page 160: Drive Chain
Saf ety Precautions on page Chain slack should be checked by measuring the amount of chain slack midway between the sprockets. The amount of slack should be: 1 1 3/8 in (25 35 mm) − − (cont’d) Servicing Your Honda...
Page 161 ) if it has damaged rollers, loose pins, or kinks that cannot be freed. Lubricate the drive chain (page ) if it appears dry or shows signs of rust. Lubricate any kinked or binding links and work them free. Adjust chain slack if needed. Servicing Your Honda...
Page 162 Check the drive chain slider ( ) at the intervals specified in the Main- tenance Schedule. The chain slider must be replaced if it is worn to the wear limit line ( ). For replacement, see your Honda dealer. LEFT SIDE (1) drive chain slider...
Page 163 For replacement, see your Honda dealer. LEFT SIDE 1/16 in (1.5 mm) (1) chain roller Inspect the front and rear sprocket teeth for excessive wear or damage. If necessary, have your Honda dealer replace a worn sprocket. Damaged Sprocket Worn Sprocket Teeth Teeth REPLACE...
Page 164 Retighten the rear axle holder fixing bolts. Rear axle holder fixing bolts torque: 15 lbf·ft (21 N·m , 2.1 kgf·m) If a torque wrench is not used for installation, see your Honda dealer as soon as possible to verify proper assembly. REAR...
Page 165 Saf ety Precautions on page Lubricate every 30 days of riding or sooner if chain appears dry. Lubricate only with SAE 80 or 90 gear oil. Commercial chain lubricants may contain solvents which could damage the rubber O-rings. Servicing Your Honda...
Page 166 Saf ety Precautions on page Your ATV has an endless (riveted master link) type chain. It should only be removed or replaced by your Honda dealer. The O-rings can be damaged by steam cleaning, high pressure washers, and certain solvents.
Page 167: Battery (Trx450Er Only)
If you plan to store your ATV, see Battery Storage, page If your battery seems weak and/or is leaking electrolyte (causing slow starting or other electrical problems), see your Honda dealer. WARNING: Battery posts, terminals and related accessories contain lead and lead compounds.
Page 168 Battery (TRX450ER only) Battery Storage Refer to Saf ety Precautions on page If you plan to store your ATV, we recommend you remove the battery and store it where it can be charged at least every 30 days to maintain its service life.
Page 169 Battery (TRX450ER only) The battery is located in a compartment under the left rear fender. LEFT SIDE (1) battery cover (2) screws Removal Make sure the ignition switch is OFF ( Remove the battery cover ( ) by removing the screws ( ).
Page 170 Battery (TRX450ER only) LEFT SIDE (3) battery holder (6) battery (4) mount bolts (7) positive ( ) terminal lead ＋ − (5) negative ( ) terminal lead Remove the battery holder ( ) by removing the mount bolts ( ).
Page 171: Battery Charging
Battery (TRX450ER only) Battery Charging Refer to Saf ety Precautions on page (1) ‘‘trickle’’ charger Be sure to read the information that came with your battery charger and follow the instructions on the battery. Improper charging may damage the battery.
Page 172: Appearance Care
Appearance Care Frequent cleaning and polishing will keep your Honda looking newer longer. Frequent cleaning also identifies you as an owner who values his ATV. A clean ATV is also easier to inspect and service. General Recommendations Refer to Saf ety Precautions...
Page 173 As a precaution, ride your ATV at a slow speed and apply the brakes several times. This will help dry the brakes and restore normal braking performance. If the inside of the headlight lens appears clouded immediately after washing, it should clear after a few minutes of riding. Servicing Your Honda...
Page 174 Brake dust. necessary, rub with a sponge. Rinse and dry. Apply a spray cleaner/polish and wipe with a non-abrasive cloth. Dull, corroded chrome Apply a high quality chrome/ or aluminum. aluminum polish and wipe with a non-abrasive cloth. Servicing Your Honda...
Page 175 After washing, rinse with plenty of water and dry with a clean cloth. Then apply a mild, commercially-available spray cleaner/polish or wax. For stained or dull-looking wheels, use a quality chrome/aluminum polish to restore the finish. Servicing Your Honda...
Page 176 Apply the polish or wax according to the instructions on the container. If a surface on your ATV is chipped or scratched, your Honda dealer has touch-up paint to match your ATV’s color. Be sure to use your ATV’s color code (page ) when you buy touch-up paint.
Page 177 Servicing Your Honda...
Page 178: Tips
Tips Here’s helpful advice on how to prepare for an off-road adventure, how to transport and store your Honda, and how to be an environmentally responsible ATV owner. Preparing for a Ride ................170 What to Take to the Riding Area ...........
Page 179: Preparing For A Ride
Preparing for a Ride A safe and enjoyable ride begins with good planning and preparation. Always ride with at least one other person in case you have trouble, and let someone know where you’re going and when you expect to return. Before riding in an unfamiliar area, find out in advance if you need special permits, get maps so you can study the terrain, and talk to other riders who know the area.
Page 180: What To Take On The Trail
Preparing for a Ride What to Take on the Trail What you take with you during a ride depends on the kind of terrain, how long you expect to ride, how far you might go from your base camp or help, and how experienced you or your companions are in making repairs.
Page 181: Transporting Your Honda
Transporting Your Honda Do not tow your ATV behind a car or other vehicle. When you transport your ATV, we recommend that you carry the vehicle in its normal operating position (on all four wheels). Do not incline the vehicle upright on its rear end. This can damage the vehicle, and leaking gasoline could be a hazard.
Page 182 Transporting Your Honda Secure the vehicle with ‘‘tie-down straps’’ in the areas shown. Suitable ‘‘tie-down straps’’ are available from your Honda dealer. Ordinary rope is not recommended because it can stretch under load. Using ‘‘tie-down straps’’ in any other areas can damage your ATV.
Page 183: Storing Your Honda
For more information about storage, refer to the Honda Motorcycle Winter Storage Guide, available from your Honda dealer (USA only). We suggest you perform the following procedures to keep your ATV in top condition. These storage procedures will reduce the deterioration that can occur during storage.
Page 184: Preparation For Storage
Storing Your Honda Preparation for Storage Refer to Saf ety Precautions on page This procedure requires a means for draining and disposing of drained fuel (page Change the engine oil and filter (page Change the transmission oil (page Make sure the cooling system is filled with a 50/50% antifreeze solution (page Fill the fuel tank.
Page 185 Storing Your Honda − Pour a tablespoon (15 20 cc) of clean engine oil into the cylinder and cover the spark plug hole with a piece of cloth. (TRX450ER) With the engine stop switch in the OFF ( ) position, press the start button several times to crank the engine and distribute the oil.
Page 186: Removal From Storage
UPPER level mark. − If your ATV has been stored for more than two months ask your Honda dealer to drain and replace the fuel. Lubricate the drive chain (page (TRX450ER only) Charge the battery (page ) as required. Install the battery.
Page 187: You & The Environment
You & the Environment Owning and riding an ATV can be enjoyable, but you must do your part to protect nature. When you show respect for the land, wildlife, and other people, you also help preserve the sport of off-road riding. Following are tips on how you can be an environmentally-responsible ATV owner.
Page 188: Taking Care Of The Unexpected
. 191 If You Crash ..................193 If You Lose Your Key ............... . 194 If the Battery Is Low (or Dead) (TRX450ER only) ......195 If a Component Fails ................196 Taking Care of the Unexpected...
Page 189: General Guidelines
Taking Care of the Unexpected General Guidelines Keeping your ATV well-maintained is the best way to reduce the possibility of having a problem while riding. However, problems can arise even with well-maintained machines. Remember to take along your owner’s manual, the tool kit that came with your ATV, and any other items (such as tire repair supplies and additional tools) that might help you solve a problem on your own.
Page 190: Taking Care Of The Unexpected
Taking Care of the Unexpected Should you ever have a problem while riding, please follow these guidelines: Always put personal safety first. Take time to assess the situation and your options before deciding what to do. If the problem is relatively minor and you have the tools, supplies, and skills to make a temporary repair, be sure to have permanent repairs made as soon as possible.
Page 191: If Your Engine Quits Or Won't Start
If you have a problem starting the engine or experience poor engine − performance the following information may help you. If you can’t correct the problem, see your Honda dealer. (TRX450ER) If your ATV won’t start, listen as you press the start button. If you don’t hear the starter motor turning, refer to the Starter motor doesn’t operate...
Page 192 If Your Engine Quits or Won’t Start SYMPTOM: Starter motor doesn’t operate. (TRX450ER only) POSSIBLE CAUSE WHAT TO DO ignition switch OFF Turn the ignition switch ON. transmission not in Shift into neutral. neutral blown fuse Replace with a new fuse of the...
Page 193 F looded Engine flooded engine (page loose or Install the spark plug cap securely. If unconnected spark the engine still won’t start, see your plug cap Honda dealer. not enough throttle Check the throttle freeplay (page freeplay Taking Care of the Unexpected...
Page 194 ). If the problem persists, see your Honda dealer. improperly throttle Check the throttle freeplay freeplay (page poor engine Ask your Honda dealer to modify the performance at carburetion with a high altitude jet. altitudes above Refer to High Altitude Carburetor Adjustment, 4,500 feet (1,500 m).
Page 195: If You Have A Flat Tire
Follow the instructions provided with the repair kit to make a temporary repair. As soon as possible, have the tire permanently repaired by your Honda dealer. Any tire that cannot be repaired should be replaced. Whenever the ATV is to be operated far from service facilities or available transportation, we recommend that you carry a tire pump and a repair kit with the vehicle.
Page 196 If You Have a Flat Tire Emergency Wheel Removal/Installation Refer to Saf ety Precautions on page (1) wheel nuts (2) wheel rim Removal Park your ATV on a firm, level surface. Raise the front (or rear) wheels off the ground and place a support block under the vehicle.
Page 197 47 lbf·ft (64 N·m , 6.5 kgf·m) If a torque wrench was not used for installation, see your Honda dealer as soon as possible to verify proper assembly. Improper assembly may lead to loss of braking capability.
Page 198: If The High Coolant Temperature Indicator Lights
The indicator may turn off after a brief stop with no load on the engine. Check the radiator fan. If the fan is not working, have your Honda dealer check for problems. If the radiator fan is working, visually check the coolant level in the reserve tank, located under the steering cover.
Page 199 If there’s a mild coolant leak, you can ride for awhile, carefully watching the indicator. Be prepared to stop and add more coolant or water. If the leak is bad, transport your ATV to a Honda dealer (page Taking Care of the Unexpected...
Page 200: If A Fuse Blows (Trx450Er Only)
If a Fuse Blows (TRX450ER only) All of the electrical circuits on your ATV have a fuse to protect them from damage caused by excess current flow (short circuit or overload). If something electrical on your ATV stops working, the first thing you should check for is a blown fuse ( ).
Page 201 If the replacement fuse of the same rating burns out in a short time, there is probably a serious electrical problem on your ATV. Leave the blown fuse in that circuit and have your ATV checked by your Honda dealer.
Page 202: If You Crash
Sometimes, crash damage is hidden or not immediately apparent. When you get home, thoroughly check your ATV and correct any problems you find. Also, be sure to have your Honda dealer check the frame and suspension after any serious crash.
Page 203: If You Lose Your Key
If you don’t know your key number, call the dealer where you purchased your Honda ATV. They may have it listed in their records. If they don’t, transport your ATV to them or the nearest Honda dealer.
Page 204: If The Battery Is Low (Or Dead) (Trx450Er Only)
The greater amperage of an automobile battery when the car engine is running can damage your ATV’s electrical system. Bump starting is also not recommended. If you can’t charge the battery or it appears unable to hold a charge, contact your Honda dealer. Taking Care of the Unexpected...
Page 205: If A Component Fails
If a Component Fails The levers or pedal, control cables, and other components can be damaged as you ride in dense brush or over rocky terrain. Making a trailside repair depends on how serious the damage is and what tools and supplies you have with you.
Page 206: Technical Information
Technical Information This section contains dimensions, capacities, and other technical data, plus information on government requirements and how to break-in your ATV. Vehicle Identification ................198 Specifications ..................200 Break-in Guidelines ................205 High Altitude Carburetor Adjustment ..........
Page 207: Vehicle Identification
Vehicle Identification Serial Numbers The VIN, engine serial number, and key number may be required when ordering replacement parts. You may record these numbers in the Quick Reference section at the rear of this manual. The VIN ( ) is stamped on the front of the frame. FRONT (1) VIN The engine number ( ) is stamped on the left side of the crankcase.
Page 208: Technical Information
Vehicle Identification Color Label & Code The color label ( ) is attached to the front of the frame. The color code is helpful when ordering replacement parts. You may record the color and code in the Quick Reference section at the rear of this manual.
Page 209: Specifications
API service label, SAE 10W-30, JASO T 903 standard MA, Pro Honda GN4 4-stroke oil (USA & Canada) or Honda 4-stroke oil (Canada only), or an equivalent motorcycle oil Technical Information...
Page 210 API service label, SAE 10W-30, JASO T 903 standard MA, Pro Honda HP Trans Oil, Pro Honda GN4 4-stroke oil, or an equivalent. cooling system Pro Honda HP Coolant or an...
Page 211 Specifications Capacities passenger capacity operator only maximum weight 243 lbs (110 kg) capacity rider, all cargo and accessories Engine Specifications displacement 27.4 cu-in (449 cm ) 3.78 × 2.44 in (96.0 × 62.1 mm) bore & stroke compression ratio 12.0 : 1 spark plug IFR7L11 (NGK) (standard)
Page 212 Specifications Chassis & Suspension caster ° trail 0.9 in (23 mm) × ★★ tire size, front AT21 7R10 DUNLOP KT331H AT20 × 10R9 ★★ tire size, rear DUNLOP KT355H Front: tire pressure, front & rear (cold) 4.0 psi (27.5 kPa , 0.275 kgf/cm ) Rear: 4.7 psi (32.5 kPa , 0.325 kgf/cm ) Technical Information...
Page 213 Specifications Electrical battery 12 V 6 Ah − (TRX450ER only) generator 0.214 kW/5,000 rpm Lights headlight 12 V 30/30 W × brake/tail light high coolant 12 V 3.4 W temperature indicator neutral indicator 12 V 3 W (TRX450ER only) Fuse...
Page 214: Break-In Guidelines
Break-in Guidelines Help assure your ATV’s future reliability and performance by paying extra attention to how you ride during the first operating day or 15 miles (25 km). During this period, avoid full-throttle starts, rapid acceleration, and constant rpm operation. Technical Information...
Page 215: High Altitude Carburetor Adjustment
High Altitude Carburetor Adjustment At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting. Operation at an altitude that differs from that at which this engine was certified, for extended periods of time, may increase emissions.
Page 216: Emission Control Systems
Emission Control Systems Exhaust Emission Requirements The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Environment Canada (EC) require that your ATV comply with applicable exhaust emissions standards during its useful life, when operated and maintained according to the instructions provided.
Page 217 Carbon monoxide does not react in the same way, but it is toxic. Honda Motor Co., Ltd. utilizes various systems to reduce carbon monoxide, oxides of nitrogen and hydrocarbons. Exhaust Emission Control System The exhaust emission control system is composed of appropriate carburetor settings.
Page 218 Problems That May Affect ATV Exhaust Emissions If you are aware of any of the following symptoms, have the vehicle inspected and repaired by your Honda ATV dealer. Symptoms: Hard starting or stalling after starting Rough idle...
Page 219 Emission Control Systems Noise Emission Control System TAMPERING WITH THE NOISE CONTROL SYSTEM IS PROHIBITED: State laws prohibit, or Canadian provincial laws may prohibit the following acts or the causing thereof: ( ) The removal or rendering inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use;...
Page 220: Oxygenated Fuels
Oxygenated Fuels Some conventional gasolines are being blended with alcohol or an ether compound. These gasolines are collectively referred to as oxygenated fuels. To meet clean air standards, some areas of the United States and Canada use oxygenated fuels to help reduce emissions. If you use an oxygenated fuel, be sure it is unleaded and meets the minimum octane rating requirement.
Page 221 Oxygenated Fuels If you notice any undesirable operating symptoms, try another service station or switch to another brand of gasoline. Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of oxygenates mentioned above are not covered under warranty.
Page 222: Consumer Information
Honda service manual. Authorized Manuals ................214 Warranty Coverage ................217 Warranty Service ................. 218 Contacting Honda ................219 Your Honda Dealer ................220 The Honda Rider’s Club (USA only) ..........221 Consumer Information...
Page 223: Authorized Manuals
Helm, Inc. (USA only, Canada: See your Honda dealer to order authorized manuals.) Also available but not necessary to service your model is the Honda Common Service Manual which explains theory of operation and basic service information for various systems common to all Honda motorcycles, motor scooters and ATVs.
Page 224: Consumer Information
Mail to Helm, Inc. at the address shown on the back of this order form (USA only). Canada: See your Honda dealer to order authorized manuals. Publication Item Description Qty.
Page 225 NOTE: Dealers and Companies please provide dealer or company name, and also the name of the person to whose attention the shipment should be sent. Customer Name Attention Street Address Apartment Number City State Zip Code Daytime Telephone Number Check or money order enclosed payable to Helm Inc. U. S. funds only. Do not send cash. Check here if your billing address is different from the shipping address shown above.
Page 226: Warranty Coverage
There are responsibilities, restrictions, and exclusions which apply to these warranties. Please read the Warranties Booklet given to you by your Honda dealer at the time of purchase. Be sure to keep your Honda owner’s card with your Warranties Booklet (USA only).
Page 227: Warranty Service
If you have questions about warranty coverage or the nature of the repair, it is best to talk to the service manager of your Honda dealer. Sometimes, in spite of the best intentions of all concerned, a misunderstanding may occur.
Page 228: Contacting Honda
That’s why it’s important to work to resolve any differences at the dealership level. If you wish to comment on your experiences with your Honda or with your dealer, please send your comments to the following address (USA only): Motorcycle Division, American Honda Motor Co., Inc., P.O.
Page 229: Your Honda Dealer
Your Honda Dealer Once you purchase your new Honda, get familiar with the organization of your Honda dealer so you can utilize the full range of services available. The service department is there to perform regular maintenance and unexpected repairs. It has the latest available service information from Honda.
Page 230: The Honda Rider's Club (Usa Only)
The Honda Rider’s Club (USA only) You may be eligible for a Honda Rider’s Club of America (HRCA) membership with the purchase of your new Honda. You can log on to the HRCA Clubhouse website for details at www.hrca.honda.com. Consumer Information...
Page 231: Table Of Contents
INDICATORS & CONTROLS ............Operation Component Locations ............10 Indicators ....................13 High Coolant Temperature Indicator ..........13 Neutral Indicator (TRX450ER only) ..........14 Controls & Features ................15 Fuel Valve ..................15 Choke Knob ..................
Page 232 Table of Contents BEFORE RIDING ................27 Are You Ready to Ride? ............... 28 Protective Apparel ................28 Rider Training .................. . 30 Age Recommendation ............... 31 No Passengers .................. . 31 No Alcohol or Drugs ................
Page 233 Table of Contents BASIC OPERATION & RIDING ............ . 41 Safe Riding Precautions ............... . 42 Off-Road Use Only ................42 Keep Hands and Feet on Controls ............ . 43 Control Speed ..................44 Use Care on Unfamiliar or Rough Terrain ........
Page 234: Air Cleaner
Table of Contents SERVICING YOUR HONDA ............73 Bef ore You Service Your Honda The Importance of Maintenance ............75 Maintenance Safety ................76 Important Safety Precautions ............77 Maintenance Schedule ................78 Maintenance Record ................
Page 235: Appearance Care
If a Fuse Blows (TRX450ER only) ............ . 191 If You Crash ..................193 If You Lose Your Key ............... . 194 If the Battery Is Low (or Dead) (TRX450ER only) ......195 If a Component Fails ................196 Table of Contents...
Page 236: Authorized Manuals
. 217 Warranty Service ................. 218 Contacting Honda ................219 Your Honda Dealer ................220 The Honda Rider’s Club (USA only) ..........221 TABLE OF CONTENTS ..............222 INDEX ....................228 QUICK REFERENCE Table of Contents...
Page 237: Index
American Honda, contacting .............. . 219 apparel, protective ................. 28 appearance care .................. . 163 authorized manuals ................214 battery (TRX450ER only) ..............158 brakes, brake pad wear ................137 cable ....................141 fluid ....................
Page 238 Index capacity, fuel ..................90 care, appearance ................. . 163 cargo, loading and operational guidelines ........... . 38 choke, knob ....................16 climbing hills ..................63 clutch system ..................116 color label ................... . 199 compartment, owner’s manual ................
Page 239: Index
Index dimmer switch, headlight ..............22 emission control systems ..............207 engine, flooded ....................54 guard ....................150 idle speed ..................120 number ................... . 198 ..................... . 92 pinging ....................89 starting ....................
Page 240 ....................90 oxygenated ..................211 recommendation ................89 refueling ................... . 90 reserve fuel supply ................90 tank capacity ..................90 valve ....................15 fuse (TRX450ER only) ............... 191 Index...
Page 241 . 68 riding down hills ................67 riding up hills ..................63 stopping on hills ................65 Honda, contacting ..................219 Rider’s Club ..................221 dealer ....................220 Honda service manual ................ . 214 Index...
Page 242 . 198 idle speed, engine ................120 ignition switch ..................18 indicators, high coolant temperature indicator ..........13, 189 neutral indicator (TRX450ER only) ..........14 inspection, pre-ride ................33 key, lost ....................194 number ...................
Page 243 Index labels, safety ................... limit, weight ..................37 load limits ....................37 loading guidelines ................. 38 lubrication, engine oil ................... 92 transmission oil ................. 99 drive chain ..................156 maintenance, component locations ................83 importance ..................
Page 244 Index neutral indicator (TRX450ER only) ............14 noise emission control system ............. 210 numbers, serial ..................198 obstacles, riding over ................70 oil, engine ....................92 transmission ..................99 operating controls ................. . 15 operation component locations .............
Page 245 Index removal, seat ..................88 rider training ..................30 Rider’s Club, Honda ................221 riding, basic operations ................. 41 clothing ....................28 precautions ..................42 preparing for .................. . 170 over obstacles ..................70 safety ....................
Page 246 Index safety, important precautions ............... . 77 labels ....................riding precautions ................42 schedule, maintenance ................78 seat removal ..................88 serial numbers ..................198 service, customer ..................219 manuals ................... 214 warranty ..................
Page 247 Index start button (TRX450ER only) ............. . 19 starting, engine ....................47 troubleshooting ................182 stop switch, engine ................21 stopping engine ..................55 storage, ....................174 owner’s manual ................. 87 switch, brakelight ..................
Page 248: Cable
Index throttle, cable ..................114, 115 lever .................. . 23, 114, 115 tires, air pressure ..................144 flat ....................186 replacing ..................149 repairing ..................148 specifications .................. . 203 tread conditions ............... 146, 147 tool kit ....................
Page 249 Index valve, fuel ....................15 valve clearance ..................124 vehicle identification no. (VIN) ............198 warning labels ..................warranty, coverage ..................217 extended ..................217 service .................... . 218 washing your ATV ................163 water, riding through ...................
Page 250 Quick Reference The following is a brief, but important collection of information you need to know about your Honda. You’ll also find space to record important notes. How To Avoid Costly Repairs The engine of your Honda can be the most expensive component to repair.
Page 251 Quick Reference Engine No. Ignition Key No. Color Label Owner’s Name Address City/State Phone Dealer’s Name Address City/State Phone Service Mgr. Quick Reference...
Page 252 API service label, SAE 10W-30, JASO T 903 standard MA, Pro Honda GN4 4-stroke oil or equivalent Transmission Oil API Service Classification SG or higher except oils labeled as energy conserving...
Page 253 Spark Plugs IFR7L11 (NGK) VK22PRZ11 (DENSO) high speed riding: IFR8H11 (NGK) VK24PRZ11 (DENSO) Coolant ethylene glycol antifreeze (silicate-free) for aluminum engines in 50/50 solution with Pro Honda HP Coolant or an equivalent distilled water 15 A Fuse (TRX450ER only) Quick Reference...
Page 254 Quick Reference These symbols are used in Controls & Features section: SYMBOL COMPONENT SEE PAGE choke knob − ignition switch − ignition switch START button − engine stop switch − engine stop switch − headlight switch − headlight switch − headlight dimmer switch −...

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Trx450r

Honda TRX450ER Owner's Manual

Indicators & Controls

Before Riding

Basic Operation & Riding

(Trx450Er Only)

Taking Care of the Unexpected

Technical Information

Consumer Information

Table of Contents

Quick Links

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Summary of Contents for Honda TRX450ER

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