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Contents
31K87A30
2020 Rebel (CMX300/A)
MOM 17314 (1909)
P. 2
P. 20
P. 45
P. 99
P. 117
P. 139
P. 143

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Summary of Contents for Honda CMX300

  • Page 1: Table Of Contents

    Contents Vehicle Safety P. 2 Operation Guide P. 20 Maintenance P. 45 Troubleshooting P. 99 Information P. 117 Specifications P. 139 Index P. 143 31K87A30 2020 Rebel (CMX300/A) MOM 17314 (1909)
  • Page 2 Welcome Congratulations on your purchase of a new When service is required, remember that Honda vehicle. Your selection of a Honda your Honda dealer knows your vehicle best. makes you part of a worldwide family of If you have the required mechanical “know- satisfied customers who appreciate Honda's how”...
  • Page 3 A Few Words About Safety DANGER Your safety, and the safety of others, is very important. Operating this vehicle safely is an You WILL be KILLED or SERIOUSLY important responsibility. HURT if you don’t follow instructions. To help you make informed decisions about WARNING safety, we have provided operating procedures and other information on safety...
  • Page 4: Vehicle Safety

    Vehicle Safety This section contains important information for safe riding of your vehicle. Please read this section carefully. Safety Guidelines ..........P. 3 Safety Labels............P. 7 Safety Precautions..........P. 9 Riding Precautions ..........P. 11 Accessories & Modifications......P. 15 Loading ..............
  • Page 5: Safety Guidelines

    Safety Guidelines Safety Guidelines Before Riding Model not equipped with Optional Passenger Seat Kit Follow these guidelines to enhance your safety: Make sure that you are physically fit, mentally Perform all routine and regular inspections ● focused and free of alcohol and drugs. Check specified in this manual.
  • Page 6: Ride Defensively

    Safety Guidelines Take Time to Learn & Practice Ride Defensively Even if you have ridden other vehicles, practice Always pay attention to other vehicles around riding in a safe area to become familiar with you, and do not assume that other drivers see how this vehicle works and handles, and to you.
  • Page 7 Safety Guidelines Never Carry a passenger Keep Your Honda in Safe Condition It's important to keep your vehicle properly Model not equipped with Optional Passenger Seat Kit There are no handholds, seat, or footrests to maintained and in safe riding condition.
  • Page 8: Carbon Monoxide Hazard

    Safety Guidelines If you decide to continue riding, first turn the Never run your vehicle inside a garage or other ignition switch to the OFF position, and evaluate enclosure. the condition of your vehicle. Inspect for fluid WARNING leaks, check the tightness of critical nuts and Running the engine of your vehicle bolts, and check the handlebar, control levers, brakes, and wheels.
  • Page 9: Safety Labels

    Safety Labels Safety Labels serious injury. Read these labels carefully and don't remove them. Safety and information labels on your vehicle If a label comes off or becomes hard to read, provide important safety information and may contact your dealer for a replacement. warn you of potential hazards that could cause Model not equipped with Optional Passenger Seat Kit shown Continued...
  • Page 10 Safety Labels Model not equipped with Optional Passenger Seat Kit shown...
  • Page 11: Safety Precautions

    Safety Precautions Safety Precautions Protective Apparel Model not equipped with Optional Passenger Seat Kit Ride cautiously and keep your hands on the ● Make sure that you are wearing an approved handlebar and feet on the footpegs. helmet, eye protection, and high-visibility Model equipped with Optional Passenger Seat Kit ●...
  • Page 12 Safety Precautions Look for a DOT (Department of Gloves Transportation) certification label on any helmet Full-finger leather gloves with high abrasion you buy. resistance Boots or Riding Shoes WARNING Sturdy boots with non-slip soles and ankle protection Not wearing a helmet increases the Jacket and Pants chance of serious injury or death in a Protective, highly visible, long-sleeved jacket...
  • Page 13: Riding Precautions

    Riding Precautions Riding Precautions Exercise caution on low traction surfaces. ● The tires slip more easily on such surfaces and braking distances are Break-in Period longer. During the first 300 miles (500 km) of running, Avoid continuous braking. ● follow these guidelines to ensure your vehicle's Repeated braking, such as when future reliability and performance.
  • Page 14 Riding Precautions Anti-lock Brake System (ABS) Engine Braking Engine braking helps slow your vehicle down CMX300A only This model is equipped with an Anti-lock Brake when you release the throttle. For further System (ABS) designed to help prevent the slowing action, downshift to a lower gear. Use brakes from locking up during hard braking.
  • Page 15 Riding Precautions Parking with the Side Stand Parking Stop the engine. Park on a firm, level surface. ● Push the side stand down. If you must park on a slight incline or loose ● Slowly lean the vehicle to the left until its surface, park so that the vehicle cannot weight rests on the side stand.
  • Page 16 Riding Precautions Refueling and Fuel Guidelines Follow these guidelines to protect the engine, fuel system and catalytic converter: Use only unleaded gasoline. ● Use recommended octane number. Using ● lower octane gasoline will result in decreased engine performance. Do not use fuels containing a high ●...
  • Page 17: Accessories & Modifications

    We strongly advise that you do not add any seriously hurt or killed. accessories that were not specifically designed or approved for your vehicle by Honda or make Follow all instructions in this owner's modifications to your vehicle from its original manual regarding accessories and design.
  • Page 18: Loading

    Loading Loading WARNING Model not equipped with Optional Passenger Seat Kit Model not equipped with Optional Passenger Seat Kit ● Overloading, improper loading or Never carry a passenger. Your vehicle was carrying a passenger can cause a crash not designed to carry a passenger. Carrying extra weight affects your vehicle's and you can be seriously hurt or killed.
  • Page 19 Honda Genuine Accessory Passenger Seat Kit, or equivalent or death to you and/or the passenger. parts specifically designed for this vehicle.
  • Page 20 Loading The vehicle GVWR, weight ratings and tire load capacities can be found on the vehicle. Single Seat as produced. Single Seat Optional Honda Genuine Accessory Passenger Seat Kit shown. Passenger Seat Kit...
  • Page 21 BLANK PAGE...
  • Page 22: Parts Location

    Parts Location Model not equipped with Optional Passenger Seat Kit shown Fuse box (P.113) Battery (P.67) Seat (P.71) Front brake fluid reservoir (P.84) Front brake lever Throttle grip (P.95) Steering lock (P.38) Side cover (P.72) Engine oil fill cap (P.76) Engine oil level inspection window (P.76)
  • Page 23 Clutch lever (P.92) Ignition switch (P.37) Spark plug (P.73) Fuel fill cap (P.42) Air cleaner (P.80) Main fuse (P.115) Tool (P.43) Document bag (P.44) Rear suspension spring preload adjuster (P.98) Drive chain (P.88) Coolant reserve tank (P.82) Crankcase breather (P.96) Engine oil drain bolt (P.78) Side stand...
  • Page 24 Instruments SET button SEL button Display Check When the ignition switch is turned to the ON position, initial animation will show. If any part of these displays does not come on when it should, have your dealer check for problems.
  • Page 25 Clock (12-hour or 24-hour display) To set the clock: (P.30) Speedometer Odometer [TOTAL] & Tripmeter [TRIP A/B] & Average fuel mileage [AVG A/B] & Current fuel mileage & Reserve fuel consumption [RES] (P.24) Fuel gauge Remaining fuel when only 1st (E) segment starts flashing: approximately 0.58 US gal (2.2 L) Gear position indicator The gear position is shown in the gear...
  • Page 26: Current Fuel Mileage

    Instruments (Continued) Odometer [TOTAL] & Tripmeter [TRIP A/B] & Current fuel mileage & Average fuel mileage [AVG A/B] & Reserve fuel consumption [RES] The SEL button switches between the odometer, tripmeter A, tripmeter B, average fuel mileage A, average fuel mileage B, current fuel mileage and reserve fuel consumption. Tripmeter B Tripmeter A Reserve fuel...
  • Page 27 Odometer [TOTAL] Average fuel mileage [AVG A/B] Total distance ridden. When “------” is The average fuel mileage A will be based on displayed, go to your dealer for service. tripmeter A. Displays the average fuel mileage A since tripmeter A was reset. The average fuel mileage B will be based on Tripmeter [TRIP A/B] tripmeter B.
  • Page 28 Instruments (Continued) Current fuel mileage Reserve fuel consumption [RES] Displays the current instant fuel mileage. Displays the fuel consumption since the 1st Display range: 0.0 to 299.9 mile/gal (L/100km (E) segment of the fuel gauge starts flashing. or km/L) When the 1st (E) segment of the fuel gauge •...
  • Page 29 When they are reset, reset display appears at To reset the tripmeter [TRIP A/B] and each indication. Then, the display returns to average fuel mileage [AVG A/B] the last selected indication. To reset the tripmeter A and average fuel mileage A together, press and hold the SET button while the tripmeter A or average fuel mileage A is displayed.
  • Page 30 Instruments (Continued) To reset the tripmeter B and average fuel When they are reset, reset display appears at mileage B together, press and hold the SET each indication. Then, the display returns to button while the tripmeter B or average fuel the last selected indication.
  • Page 31: Display Setting

    Display Setting Ordinary display Following items can be changed sequentially. • Time format setting Setting Mode • Clock setting Time format setting • Backlight brightness adjustment Clock setting • Changing of speed and mileage unit • Changing of fuel mileage meter unit (only Backlight brightness adjustment when km unit system is selected) Changing of speed and mileage unit...
  • Page 32 Instruments (Continued) In addition, to move the ordinary display at 1 Time format setting: display setting. You can switch the time format between 12 hour format or 24 hour format. • The buttons is not pressed for about 30 Turn the ignition switch to the ON position. seconds.
  • Page 33 2 Clock setting: Press SET button. The clock is set, and then the display moves to the backlight Press SEL button until the desired hour is brightness adjustment. displayed. Press and hold SEL button to advance the hour quickly. Press SET button. The minute digits start flashing.
  • Page 34 Instruments (Continued) 3 Backlight brightness adjustment: 4 Changing of speed and mileage unit: You can adjust the brightness to one of five Press SEL button to select either “mph” and “mile” or “km/h” and “km”. levels. Press SEL button. The brightness is switched. When the “km/h”...
  • Page 35 5 Changing of fuel mileage meter unit: The established setting can also be set by Press SEL button to select “km/L” or “L/ turning the ignition switch to the OFF 100km” . position. The control is automatically switched from the setting mode to the ordinary display if the button is not pressed for about 30 seconds.
  • Page 36 Indicators If one of these indicators does not come on when it should, have your dealer check for problems. High coolant temperature indicator If it comes on while riding: (P.101) Right turn signal indicator PGM-FI (Programmed Fuel Injection) malfunction indicator lamp (MIL) Comes on briefly when the ignition switch is turned to the ON position with the engine stop switch in (Run) position.
  • Page 37: Neutral Indicator

    High beam indicator Neutral indicator Comes on when the transmission is in Neutral. ABS (Anti-lock Brake System) indicator CMX300A only Comes on when the ignition switch is turned to the ON position. Goes off when your speed reaches approximately 6 mph (10 km/h). Left turn signal indicator If it comes on while riding: (P.102)
  • Page 38 Switches Engine stop switch Should normally remain in the (Run) position. In an emergency, switch to the (Stop) position (the starter motor will not operate) to stop the engine. Hazard switch Switchable when the ignition switch is in the ON position. Turn signal switch Pressing the switch turns the turn signal off.
  • Page 39: Ignition Switch

    Ignition switch Turns electrical system Switches the electrical system on/off. on for starting/riding. Key can be removed when in the OFF position. Turns engine off. Continued...
  • Page 40: Ignition Key

    Switches (Continued) Steering Lock Locking Turn the handlebar all the way to the left. Lock the steering when parking to help Insert the ignition key in the steering lock. prevent theft. Push the ignition key down, and turn it 180 A U-shaped wheel lock or similar device is degrees clockwise.
  • Page 41: Starting The Engine

    Starting the Engine Start your engine using the following NOTICE procedure, regardless of whether the engine • If the engine does not start within 5 seconds, is cold or warm. turn the ignition switch to the OFF position and wait 10 seconds before trying to start the engine again to recover battery voltage.
  • Page 42 Starting the Engine (Continued) If you cannot start the engine: If the engine does not start: With the throttle slightly open (about 1/8 in (3 Open the throttle fully and press the start button for 5 seconds. mm), without freeplay) while starting the Repeat the normal starting procedure.
  • Page 43: Shifting Gears

    Shifting Gears Your vehicle transmission has 6 forward Recommended Shift Points gears in a one-down, five-up shift pattern. Shifting Up From 1st to 2nd 12 mph (20 km/h) From 2nd to 3rd 19 mph (30 km/h) From 3rd to 4th 25 mph (40 km/h) From 4th to 5th 31 mph (50 km/h)
  • Page 44 Refueling Ignition key Opening the Fuel Fill Cap Lock cover Open the lock cover, insert the ignition key, and turn it clockwise to open the fuel fill cap. Level plate Closing the Fuel Fill Cap After refueling, push the fuel fill cap closed until it locks.
  • Page 45: Storage Equipment

    Storage Equipment Tool The tools are stored on the underside of the The 5 mm Hex wrench is stored behind the seat. right side cover. Store the tools and secure them with the To remove the 5 mm Hex wrench, loosen the rubber strap as shown.
  • Page 46 Storage Equipment (Continued) The fuse puller is stored on the battery cover Document Bag under the seat. The document bag is stored on the underside of the seat. Store the document bag and secure it with the rubber strap as shown. Canada model shown Document bag Fuse puller...
  • Page 47: Maintenance

    Please read “Importance of Maintenance” and “Maintenance Fundamentals” carefully before attempting any maintenance. Refer to “Specifications” for service data. An optional larger tool kit may be available. Check with your Honda dealer's parts department. Importance of Maintenance ......P. 46 Brakes..............P. 84 Maintenance Schedule........
  • Page 48: Importance Of Maintenance

    Importance of Maintenance For information about the exhaust emission and Importance of Maintenance noise emission requirements of the U.S. Keeping your vehicle well-maintained is Environmental Protection Agency (EPA), the absolutely essential to your safety and to California Air Resources Board (CARB), and the protect your investment, obtain maximum Environment and Climate Change Canada performance, avoid breakdowns, and reduce air...
  • Page 49: Maintenance Safety

    Importance of Maintenance Follow these guidelines when performing Maintenance Safety maintenance. Always read the maintenance instructions Stop the engine and remove the key. ● before you begin each task, and make sure that Place your vehicle on a firm, level surface ●...
  • Page 50: Maintenance Schedule

    Maintenance work should be performed in owner. accordance with Honda's standards and specifications by properly trained and equipped technicians. Your dealer meets all of these requirements. All scheduled maintenance is considered a normal owner operating cost and will be charged to you by your dealer.
  • Page 51 Replace mechanically skilled. Lubricate Procedures are provided in an official Honda Service Clean Manual (2 P. 133). : Technical. In the interest of safety, have your vehicle serviced by your dealer.
  • Page 52 Maintenance Schedule Frequency Items × 1,000 mi Regular Refer to Replace page × 1,000 km 12.8 19.2 25.6 32.0 38.4 Drive Chain Every 600 mi (1,000 km): Brake Fluid 2 Years Brake Pads Wear Brake System Brake Light Switch Headlight Aim Clutch System Side Stand Suspension...
  • Page 53: Maintenance Record

    Maintenance Record Distance Odometer Date Performed By: Notes 600 miles (1,000 km) 4,000 miles (6,400 km) 8,000 miles (12,800 km) 12,000 miles (19,200 km) 16,000 miles (25,600 km) 20,000 miles (32,000 km) 24,000 miles (38,400 km) 28,000 miles (44,800 km) 32,000 miles (51,200 km) 36,000 miles (57,600 km) 40,000 miles (64,000 km)
  • Page 54: Maintenance Fundamentals

    Maintenance Fundamentals Pre-ride Inspection Model not equipped with Optional Passenger Seat Kit Check the following items if you are carrying a To ensure safety, it is your responsibility to cargo: perform a pre-ride inspection and make sure Model equipped with Optional Passenger Seat Kit that any problem you find is corrected.
  • Page 55 Maintenance Fundamentals Check the following items at regular intervals: Oil level is between the upper and lower ● level marks. P. 76 Brake fluid level is ● Front: above the LOWER level mark. P. 84 Rear: between the UPPER and LOWER level marks.
  • Page 56 Maintenance Fundamentals Periodic Checks You should also perform other periodic maintenance checks at least once a month regardless of how often you ride, or more often if you ride frequently. Also, check the odometer reading against the Maintenance Schedule and perform all maintenance that is due.
  • Page 57 Maintenance Fundamentals WARNING Replacing Parts Always use Honda Genuine Parts or their Installing non-Honda parts may make equivalents to ensure reliability and safety. your vehicle unsafe and cause a crash in When ordering colored components, specify which you can be seriously hurt or the model name, color, and code mentioned on killed.
  • Page 58 Maintenance Fundamentals Electrolyte splashes onto your skin: Battery ● Remove affected clothing and wash your Your vehicle has a maintenance-free type skin thoroughly using water. battery. You do not have to check the battery Electrolyte splashes into your mouth: ● electrolyte level or add distilled water.
  • Page 59 30 days using a charger designed specifically for If the terminals are heavily corroded, clean your Honda, which can be purchased from your and polish the terminals with a wire brush or dealer. Read the information that came with sandpaper.
  • Page 60 Bump starting is also not ratings, see “Specifications.” P. 141 recommended. Blown fuse NOTICE Installing non-Honda electrical accessories can overload the electrical system, discharging the battery and possibly damaging the system. Fuses NOTICE Fuses protect the electrical circuits on your Replacing a fuse with one that has a higher vehicle.
  • Page 61 P. 140 higher oils, excluding oils marked as “Energy Conserving” or “Resource Conserving” on the If you use non-Honda engine oil, check the circular API service symbol. label to make sure that the oil satisfies all of the following standards:...
  • Page 62 Wipe up spills immediately and wash thoroughly. pins, has missing O-rings, or kinks, have the chain inspected by your dealer. Recommended brake fluid: Honda DOT 4 Brake Fluid or equivalent Also inspect the drive sprocket and driven WARNING sprocket. If either has worn or damaged teeth, have the sprocket replaced by your dealer.
  • Page 63: Recommended Coolant

    Use a soft brush if the chain is dirty. After cleaning, wipe dry and lubricate with the Recommended Coolant recommended lubricant. Pro Honda HP Coolant is a pre-mixed solution Recommended lubricant: of antifreeze and distilled water. Pro Honda HP Chain Lube or equivalent...
  • Page 64 Maintenance Fundamentals Inspecting for Damage NOTICE Using coolant not specified for aluminum engines Inspect the tires for or tap/mineral water can cause corrosion. cuts, slits, or cracks that exposes fabric or Crankcase Breather cords, or nails or other foreign objects Service more frequently when riding in rain, at full throttle, or after the vehicle is washed or embedded in the side...
  • Page 65 Maintenance Fundamentals WARNING Inspecting Tread Depth Inspect the tread wear indicators. If they Riding on tires that are excessively worn become visible, replace the tires immediately. or improperly inflated can cause a crash For safe riding, you should replace the tires in which you can be seriously hurt or when the minimum tread depth is reached.
  • Page 66 Always use the size and type of tires and load range. recommended in this owner's manual. Have the wheel balanced with Honda ● Genuine balance weights or equivalent after the tire is installed.
  • Page 67: Tire Identification Number (Tin)

    Maintenance Fundamentals Tire Identification Number (TIN) Tire Service Life The tire identification number (TIN) is a group The service life of your tires is dependent on of numbers and letters located on the sidewall many factors, including, but not limited to, of the tire.
  • Page 68 Maintenance Fundamentals Air Cleaner This vehicle is equipped with a viscous type air cleaner element which cannot be cleaned with compressed air or otherwise without degrading its performance. If the filter becomes dirty, replace it with a new one.
  • Page 69: Removing & Installing Body Components

    Removing & Installing Body Components Battery Connector holder Relay holders Wire Removal harness Make sure the ignition switch is in the OFF position. Remove the seat. P. 71 Remove the data link connector while pressing its tab from the battery cover. CMX300A only Remove the air check connector while pressing its tab from the battery cover.
  • Page 70 Removing & Installing Body Components Battery Remove the clips. P. 70 Disconnect the positive + terminal from Disconnect the negative - terminal from the battery. the battery. Remove the battery taking care not to Pull up the battery cover. drop the terminal nuts. Battery Clips Battery...
  • Page 71: Installation

    Removing & Installing Body Components Battery Installation Install the parts in the reverse order of removal. Always connect the positive + terminal first. Make sure that bolts and nuts are tight. Make sure the clock information is correct after the battery is reconnected. P.
  • Page 72: Clip

    Removing & Installing Body Components Clip Clip Harness Band Clip Removal Removal Press down on the center pin to release Pull the harness band clip while pressing the lock. both sides of the anchor. Pull the clip out of the hole. Center pin Anchor Installation...
  • Page 73: Seat

    Removing & Installing Body Components Seat Seat Removal Pull the rear corners of the seat up, then Seat Mounting bolts remove the mounting bolts using the provided 5 mm Hex wrench. P. 43 Pull the seat back and up. Installation Insert the tab into the recess.
  • Page 74: Side Cover

    Removing & Installing Body Components Side Cover Side Cover The right and left side covers can be removed in the same way. Grommets Removal Grasp the side cover. Remove the prongs from the grommets. Remove the side cover. Installation Install the parts in the reverse order of removal.
  • Page 75: Checking Spark Plug

    Spark Plug Checking Spark Plug This vehicle uses the spark plug that have an iridium coated center electrode. Be sure to observe the following when For the recommended spark plug, see servicing the spark plug. “Specifications.” P. 140 Do not clean the spark plug. If an ●...
  • Page 76 Spark Plug Checking Spark Plug Disconnect the spark plug cap from the Inspect the electrodes and center spark plug. porcelain for deposits, erosion or carbon Clean any dirt from around the spark plug fouling. base. If the erosion or deposit is heavy, Remove the spark plug using a suitable replace the plug.
  • Page 77 Spark Plug Checking Spark Plug Install the spark plug. With the plug Install the parts in the reverse order of washer attached, thread the spark plug in removal. by hand to prevent cross-threading. When reinstalling the spark plug cap, Tighten the spark plug: take care to avoid pinching any cables If the old plug is good: or wires.
  • Page 78: Checking The Engine Oil

    Engine Oil Checking the Engine Oil Oil fill cap If the engine is cold, idle the engine for 3 to 5 minutes. Turn the ignition switch to the OFF position and wait for 2 to 3 minutes. Oil level inspection Place your vehicle in an upright position window Upper level...
  • Page 79: Adding Engine Oil

    Engine Oil Adding Engine Oil Adding Engine Oil NOTICE Overfilling with oil or operating with insufficient oil can cause damage to your engine. Do not mix If the engine oil is below or near the lower different brands and grades of oil. They may level mark, add the recommended engine oil.
  • Page 80: Changing Engine Oil And Filter

    Changing the oil and filter requires special tools. We recommend that you have your vehicle serviced by your dealer. Use a new Honda Genuine oil filter or equivalent specified for your model. NOTICE Using the wrong oil filter can result in serious damage to the engine.
  • Page 81 Engine Oil Changing Engine Oil & Filter Install the oil filter spring into the oil filter Check the oil level. P. 76 cover, and then install the new gasket and Check that there are no oil leaks. oil filter cover by tightening the oil filter NOTICE cover bolts.
  • Page 82: Air Cleaner

    Air Cleaner Changing Air Cleaner Element Screws Use a new Honda Genuine air cleaner element or an equivalent specified for your vehicle. NOTICE Using the wrong air cleaner element may cause premature engine wear or performance problems. Remove the left side cover.
  • Page 83 Air Cleaner Changing Air Cleaner Element Remove the air cleaner element by Air cleaner housing releasing the slots from the tabs. Thoroughly clean the inside of the air cleaner housing. Install the new air cleaner element. Insert the air cleaner element at an angle as shown in the illustration (a).
  • Page 84: Checking The Coolant

    Coolant Checking the Coolant Reserve tank Check the coolant level in the reserve tank while the engine is cold. Place your vehicle on a firm, level surface. UPPER level Hold your vehicle in an upright position. Check that the coolant level is between the UPPER level and LOWER level marks on the reserve tank.
  • Page 85: Changing Coolant

    Coolant Changing Coolant Remove the reserve tank cap and add Reserve tank cap fluid while monitoring the coolant level. Do not overfill above the UPPER level mark. Make sure no foreign objects enter the reserve tank opening. Securely reinstall the reserve tank cap. WARNING Removing the radiator cap while the engine is hot can cause the coolant to...
  • Page 86: Brakes

    Brakes Checking Brake Fluid If the brake fluid level in either reservoir is below the LOWER level mark or the brake lever and pedal freeplay becomes excessive, Place your vehicle in an upright position inspect the brake pads for wear. on a firm, level surface.
  • Page 87: Inspecting The Brake Pads

    Brakes Inspecting the Brake Pads Inspecting the Brake Pads Inspect the brake pads from below Front the brake caliper. Inspect the brake pads from the rear Check the condition of the brake pad wear Rear right of the vehicle. indicators. If necessary have the pads replaced by your The pads need to be replaced if a brake pad dealer.
  • Page 88: Adjusting The Brake Light Switch

    Brakes Adjusting the Brake Light Switch Adjusting the Brake Light Switch Check the operation of the brake light switch. Hold the brake light switch and turn the adjusting nut in the direction A if the switch operates too late, or turn the nut in the direction B if the switch operates too soon.
  • Page 89: Checking The Side Stand

    Side Stand Checking the Side Stand Sit on the vehicle, shift the transmission to Neutral, and raise the side stand. Start the engine, pull the clutch lever in, and shift the transmission into gear. Lower the side stand all the way. The engine should stop as you lower the side stand.
  • Page 90: Drive Chain

    Drive Chain Inspecting the Drive Chain Slack Check the drive chain slack at several points along the chain. If the slack is not constant at all points, some links may be kinked and binding. Have the chain inspected by your dealer. Shift the transmission to Neutral.
  • Page 91: Adjusting The Drive Chain Slack

    Drive Chain Adjusting the Drive Chain Slack Adjusting the Drive Chain Slack Pulser ring CMX300A only Adjusting the chain requires special tools. Have the drive chain slack adjusted by your dealer. Wheel speed CMX300A only sensor When adjusting the drive chain slack, be CMX300A only Lock nut careful not to damage the wheel speed...
  • Page 92 Drive Chain Adjusting the Drive Chain Slack Turn both adjusting bolts an equal Hold the adjusting bolts and tighten the number of turns until the correct drive lock nuts. chain slack is obtained. Turn the adjusting To hold the adjusting bolt, use the bolts clockwise to tighten the chain.
  • Page 93 Drive Chain Adjusting the Drive Chain Slack If a torque wrench was not used for installation, see your dealer as soon as Red zone possible to verify proper assembly. Improper assembly may lead to loss of braking capacity. Checking the Drive Chain Wear Index mark Check the chain wear label when adjusting Adjusting plate...
  • Page 94: Checking The Clutch

    Clutch Checking the Clutch Check the clutch cable for kinks or signs of wear. If necessary have it replaced by your Checking the Clutch Lever Freeplay dealer. Lubricate the clutch cable with a Check the clutch lever freeplay. commercially available cable lubricant to Freeplay at the clutch lever: prevent premature wear and corrosion.
  • Page 95: Adjusting The Clutch Lever Free Play

    Clutch Adjusting the Clutch Lever Freeplay Adjusting the Clutch Lever Upper lock nut Freeplay – Upper Adjustment Attempt adjustment with the upper clutch cable adjuster first. Loosen the upper lock nut. Turn the upper clutch cable adjuster until Upper clutch cable adjuster the freeplay is 3/8 - 13/16 in (10 - 20 mm).
  • Page 96 Clutch Adjusting the Clutch Lever Freeplay Loosen the upper lock nut and turn the Lower adjusting nut upper clutch cable adjuster all the way in (to provide maximum freeplay). Tighten the upper lock nut. Loosen the lower lock nut. Turn the lower adjusting nut until the clutch lever freeplay is 3/8 - 13/16 in (10 - –...
  • Page 97: Throttle

    Throttle Checking the Throttle Adjusting the Throttle Freeplay With the engine off, check that the throttle Slide the cable boot. rotates smoothly from fully closed to fully Loosen the lock nut. open in all steering positions and throttle Turn the adjuster until the freeplay is 1/16 freeplay is correct.
  • Page 98: Crankcase Breather

    Crankcase Breather Cleaning the Crankcase Breather Place a suitable container to receive deposits. Remove the crankcase breather tube plug from the tube. Drain deposits into a suitable container. Install the crankcase breather tube plug. Crankcase breather tube plug...
  • Page 99: Other Adjustments

    Other Adjustments Adjusting the Headlight Aim You can adjust vertical aim of the headlight for proper alignment. Turn the bolt in or out as necessary using the provided Phillips screwdriver. P. 43 Obey local laws and regulations. Bolt Lower Raise...
  • Page 100: Adjusting The Rear Suspension

    Other Adjustments Adjusting the Rear Suspension Adjusting the Rear Suspension NOTICE Attempting to adjust directly from 1 to 5 or 5 to 1 Spring Preload may damage the shock absorber. You can adjust the spring preload by the NOTICE adjuster to suit the load or the road surface. Do not turn the adjuster beyond its limits.
  • Page 101: Troubleshooting

    Troubleshooting Engine Will Not Start........P. 100 Unstable Engine Operation Occurs Overheating (High coolant temperature Intermittently ..........P. 116 indicator is on) ..........P. 101 Warning Indicators On or Flashing..... P. 102 PGM-FI (Programmed Fuel Injection) Malfunction Indicator Lamp (MIL)....P. 102 ABS (Anti-lock Brake System) Indicator ..
  • Page 102: Engine Will Not Start

    Engine Will Not Start Starter Motor Operates But Starter Motor Does Not Engine Does Not Start Operate Check the following items: Check the following items: Check the correct engine starting Check the correct engine starting ● ● sequence. P. 39 sequence.
  • Page 103: Overheating (High Coolant Temperature Indicator Is On)

    Overheating (High coolant temperature indicator is on) The engine is overheating when the following If the fan is not operating: occurs: Suspect a fault. Do not start the engine. High coolant temperature indicator Transport your vehicle to your dealer. ● comes on.
  • Page 104: Warning Indicators On Or Flashing

    Warning Indicators On or Flashing PGM-FI (Programmed Fuel Indicator comes on or starts flashing while ● riding. Injection) Malfunction Indicator does not come on when the ● Indicator Lamp (MIL) ignition switch is in the ON position. Indicator does not go off at speeds above ●...
  • Page 105: Other Warning Indications

    Other Warning Indications Fuel Gauge Failure Indication If the fuel system has an error, the fuel gauge indicators will be displayed as shown in the illustrations. If this occurs, see your dealer as soon as possible.
  • Page 106: Tire Puncture

    Tire Puncture WARNING Repairing a puncture or removing a wheel requires special tools and technical expertise. Riding your vehicle with a temporary We recommend you have this type of service tire repair can be risky. If the temporary performed by your dealer. repair fails, you can crash and be After an emergency repair, always have the seriously injured or killed.
  • Page 107 Tire Puncture Removing Wheels Loosen the right and left axle pinch bolts. CMX300A only When removing and installing the wheel, be Support your vehicle securely and raise careful not to damage the wheel speed the front wheel off the ground using a sensor and pulser ring.
  • Page 108: Installation

    Tire Puncture Removing Wheels Installation Align the end of the front axle shaft with Attach the side collars to the wheel. the surface of the fork leg. On the left side, place the wheel between Surface of the fork legs and insert the front axle fork leg shaft, through the left fork leg and wheel hub.
  • Page 109 Tire Puncture Removing Wheels Lower the front wheel on the ground. Apply the brake lever and pump the fork several times. Retighten the left axle pinch bolts. Torque: 16 lbf·ft (22 N·m, 2.2 kgf·m) Raise the front wheel off the ground again, and check that the wheel rotates freely after you release the brake.
  • Page 110 Tire Puncture Removing Wheels Rear Wheel Adjusting plate When using a maintenance stand, be careful Pulser ring not to damage the wheel speed sensor wire CMX300A only (CMX300A only) and brake hose. Removal Wheel speed Support your vehicle securely and raise sensor the rear wheel off the ground using a CMX300A only...
  • Page 111 Tire Puncture Removing Wheels Remove the rear axle shaft, chain NOTICE adjusting plates, brake caliper bracket, When installing a wheel or caliper into original position, carefully fit the brake disc between the rear wheel and side collars. pads to avoid scratching them. Support the brake caliper assembly so that it doesn’t hang from the brake Make sure that the lug on the swingarm is...
  • Page 112 Tire Puncture Removing Wheels Adjust the drive chain. P. 89 After installing the wheel, apply the brake Hold the adjusting bolts and tighten the pedal several times, then check if the lock nuts. wheel rotates freely. Recheck the wheel if To hold the adjusting bolt, use the the brake drags or if the wheel does not provided 5 mm Hex wrench.
  • Page 113: Electrical Trouble

    Electrical Trouble Battery Goes Dead Burned-out Light Bulb Charge the battery using a motorcycle All light bulbs on the vehicle are LEDs. If battery charger. there is an LED which is not turned on, see Remove the battery from the vehicle before your dealer for servicing.
  • Page 114: Brake Light/Taillight

    Electrical Trouble Burned-out Light Bulb Headlight/Front Turn Signals/ Brake Light/Taillight/Rear Turn Position Lights Signals/License Plate Light Headlight Rear turn signals License plate light Brake light/taillight The brake light, taillight, rear turn signals and Front turn signals/position lights license plate light use several LEDs. The headlight and front turn signals/position If there is an LED which is not turned on, see lights use several LEDs.
  • Page 115: Blown Fuse

    Electrical Trouble Blown Fuse Blown Fuse CMX300 Spare fuses are provided in the fuse box. Before handling fuses, see “Inspecting and Replacing Fuses.” P. 58 CMX300A Spare fuses are provided in the fuse Fuse Box Fuses box and on the battery cover (to access the spare fuse, open the cover).
  • Page 116 Electrical Trouble Blown Fuse CMX300 CMX300A Fuse box Fuse box Spare fuses covers covers Spare fuses Fuse box covers...
  • Page 117 Electrical Trouble Blown Fuse Main Fuse Pull the main fuse out and check for a blown fuse. Always replace a blown fuse Main fuse Wire connector with a spare fuse of the same rating. Spare main fuse is provided in the starter magnetic switch.
  • Page 118 Unstable Engine Operation Occurs Intermittently If the fuel pump filter is clogged, unstable engine operation will occur intermittently while riding. Even if this symptom occurs, you can continue to ride your vehicle. If unstable engine operation occurs even if sufficient fuel is available, have your vehicle inspected by your dealer as soon as possible.
  • Page 119: Information

    Vehicle Identification Number..... P. 126 Emission Control Systems ......P. 127 Catalytic Converter ......... P. 131 Oxygenated Fuels..........P. 132 Authorized Manuals ........P. 133 Warranty Coverage and Service ....P. 134 Honda Contacts ..........P. 136 Reporting Safety Defects ..... P. 138...
  • Page 120: Keys

    Keys Keys Ignition Key/Steering Lock Key Be sure to record the key number provided with the key number plate. Store the spare key and key number in a safe location. To make a duplicate, take the spare key or the key number to your dealer.
  • Page 121: Instruments, Controls, & Other Features

    Instruments, Controls, & Other Features Instruments, Controls, & Tripmeter Other Features The tripmeters return to 0.0 when each read- out exceeds 9,999.9. Ignition Switch Leaving the ignition switch in the ON position Document Bag with the engine stopped will drain the battery. The owner’s manual, registration, and insurance information can be stored in the plastic Do not turn the key while riding.
  • Page 122: Caring For Your Vehicle

    The assist-slipper clutch system helps to prevent Frequent cleaning and polishing is important to the rear tire from locking up when the ensure the life of your Honda. A clean vehicle deceleration of your vehicle produces a strong makes it easier to spot potential problems.
  • Page 123 Caring for Your Vehicle Thoroughly rinse your vehicle with plenty of Washing Precautions clean water and dry with a soft, clean cloth. Follow these guidelines when washing: After the vehicle dries, lubricate any moving Do not use high-pressure washers: ● parts.
  • Page 124 Caring for Your Vehicle Do not direct water at the air cleaner: Aluminum Components ● Water in the air cleaner can prevent the Aluminum will corrode from contact with dirt, engine from starting. mud, or road salt. Clean aluminum parts Do not direct water near the headlight: ●...
  • Page 125: Storing Your Vehicle

    Storing Your Vehicle Storing Your Vehicle Exhaust Pipe and Muffler When the exhaust pipe and muffler are painted, If you store your vehicle outdoors, you should do not use a commercially available abrasive consider using a full-body cover. kitchen cleaning compound. Use a neutral If you won't be riding for an extended period, detergent to clean the painted surface on the follow these guidelines:...
  • Page 126: Transporting Your Vehicle

    For more information about storage, Canada NOTICE visit our website at www.honda.ca and look up Towing your vehicle can cause serious damage “Storage Tips” under the “Honda Warranty” in to the transmission. the Warranty tab for your Model.
  • Page 127: You & The Environment

    You & the Environment You & the Environment Recycle Wastes Put oil and other toxic wastes in approved Owning and riding a vehicle can be enjoyable, containers and take them to a recycling center. but you must do your part to protect the Call your local or state office of public works or environment.
  • Page 128: Vehicle Identification Number

    Vehicle Identification Number Vehicle Identification Number The VIN and engine serial number uniquely identify your vehicle and are required in order to register your vehicle. They may also be required when ordering replacement parts. You should record these numbers and keep them in a safe place.
  • Page 129: Emission Control Systems

    Your vehicle engine emits combustion Compliance with the terms of the byproducts, including carbon monoxide (CO), Distributor's Warranties for Honda Motorcycle oxides of nitrogen (NOx), and hydrocarbons Emission Control Systems is necessary in order (HC). Gasoline evaporation also emits to maintain a valid emissions system warranty.
  • Page 130 Emission Control Systems Ignition Timing Control System Noise Emission Requirements The ignition timing control system adjusts the The EPA requires that vehicles built after ignition timing to reduce the amount of HC, January 1, 1983 comply with applicable noise CO, and NOx produced. emission standards for one year or 3,730 miles (6,000 km) after the time of purchase when Secondary Air Injection System...
  • Page 131 Emission Control Systems Crankcase Emissions Control System Noise Emission Control System The engine is equipped with a closed crankcase TAMPERING WITH THE NOISE CONTROL system to prevent discharging crankcase SYSTEM IS PROHIBITED: emissions into the atmosphere. Blow-by gas is U. S. federal law prohibits, and Canadian returned to the combustion chamber through provincial laws may prohibit, the following acts the crankcase breather hose, air cleaner...
  • Page 132 Emission Control Systems AMONG THOSE ACTS PRESUMED TO Problems Affecting Vehicle Exhaust CONSTITUTE TAMPERING ARE THE Emissions FOLLOWING ACTS: Have your vehicle inspected and repaired by Removal of, or puncturing the muffler, ● your dealer if you experience any of the baffles, header pipes or any other following symptoms: component which conducts exhaust gases.
  • Page 133: Catalytic Converter

    A defective catalytic converter contributes to air riding and turn off the engine. Have your pollution and can impair your engine's vehicle serviced as soon as possible. performance. A replacement unit must be an original Honda part or equivalent.
  • Page 134: Oxygenated Fuels

    Oxygenated Fuels Oxygenated Fuels If you accidentally fill your fuel tank with an oxygenated fuel containing higher percentages, Some conventional fuels blended with alcohol you may experience performance problems. To or an ether compound are available in some resolve the problem, have your dealer drain the locales to help reduce emissions to meet clean fuel tank and replace with the correct fuel.
  • Page 135: Authorized Manuals

    Authorized Manuals Authorized Manuals These Honda manuals are written for the professional technician. However, if you possess The Service Manual used by your the proper tools, observe the safety standards, authorized dealer is available from your Honda and are mechanically capable, you should find dealer or Helm, Inc.
  • Page 136: Warranty Coverage And Service

    Service workmanship of your Honda. Your warranty coverage does not apply to the normal wear Coverage and deterioration associated with use of the Your new Honda is covered by the following vehicle. warranties: Vehicle Limited Warranty ● Your warranty coverage is not voided if you Emission Control System Warranty ●...
  • Page 137 If you believe you have a problem with your dealership or their designated representative. vehicle, call the service department of your Honda dealer. Make an appointment for an inspection and diagnosis. You will be asked to authorize that inspection, and your dealer will return the results of the inspection.
  • Page 138: Honda Contacts

    Dealer name and address ● or with your dealer, please send your comments to the following address: We will likely ask your Honda dealer to respond, Motorcycle Division, or possibly acknowledge your comments American Honda Motor Co., Inc., directly.
  • Page 139 The sales department offers the Honda Your Honda Dealer Protection Plan to extend almost all of your The service department of your Honda dealer warranty coverage. offers trained personnel to perform regular maintenance and most repairs. It has the latest...
  • Page 140: Reporting Safety Defects

    Highway Traffic Safety Administration 1200 New Jersey Avenue, SE., (NHTSA) in addition to notifying Washington, DC 20590. American Honda Motor Co., Inc. You can also obtain other information about motor vehicle safety from: If NHTSA receives similar complaints, it http://www.safercar.gov.
  • Page 141: Specifications

    28° Displacement 17.4 cu-in (286 cm Trail 4.3 in (110 mm) Bore x stroke 2.99 x 2.48 in (76.0 x 63.0 mm) CMX300 Compression 49 STATE 364 lb (165 kg) 10.7 : 1 ratio 50 STATE (meets 366 lb (166 kg)
  • Page 142 Recommended No. of links service label, SAE 10W-30, JASO T 903 engine oil Drive standard MA, Pro Honda GN4 4-stroke oil sprocket Standard sprocket (USA & Canada) or Honda 4-stroke oil, or size Driven an equivalent motorcycle oil sprocket...
  • Page 143 Front wheel axle bolt 38 lbf·ft (51 N·m, 5.2 kgf·m) Front wheel axle pinch bolt 16 lbf·ft (22 N·m, 2.2 kgf·m) Fuses ■ Main fuse 30 A CMX300 15 A, 7.5 A Other fuse CMX300A 30 A, 15 A, 7.5 A...
  • Page 144 Information Record Engine No. Color Label & Code Owner's Name Address City/State Phone Dealer's Name Address City/State Phone Service Manager...
  • Page 145: Index

    Index Clip ..............70 ABS (Anti-lock Brake System)....... 12 Clutch ABS (Anti-lock Brake System) Freeplay..............93 Indicator ..........35, 102 System ..............92 Accessories ............15 Color Label ............55 Air Cleaner ..........66, 80 Coolant............... 82 Authorized Manuals........133 Crankcase Breather .........
  • Page 146 Headlight Dimmer Switch ......36 Equipment High Beam Indicator........35 Owner’s Manual ..........44 High Coolant Temperature Indicator ..34 Tool ............... 43 Honda Contacts ..........136 Horn Button ............36 Flooded Engine ..........39 Fuel Ignition Cut-off System Gauge ..............23 Banking Sensor..........
  • Page 147 Instruments, Controls, &Other Overheating ............ 101 Features ............119 Oxygenated Fuels.......... 132 Labels..............7 Parking ............... 13 Load Limits ............16 Parts Location........... 20 Loading Guidelines.......... 16 Passing Light Control Switch ......36 PGM-FI (Programmed Fuel Injection) Malfunction Indicator Lamp (MIL)..34, 102 Maintenance Protective Apparel..........
  • Page 148 Repair Kit ............104 Owner’s Manual ..........44 Reporting Safety Defects......138 Tool ............... 43 Riding Precautions .......... 11 Storing Your Vehicle ........123 Switches ............. 36 Safety Guidelines ..........3 Safety Labels ............7 Throttle............... 95 Safety Precautions ..........9 Tires Seat ..............
  • Page 149 Weight Limit ............. 16 Wheels Front Removal ..........105 Rear Removal............ 108...
  • Page 150 California Proposition 65 Warning WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

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