KYMCO Mongoose 270i 2024 Owner's Manual
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KYMCO Mongoose 270i 2024 Owner's Manual

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OWNER'S MANUAL
Mongoose 270i
OFF-ROAD
Do not remove this Owner's Manual from this ATV
according to the guidelines and agreement with the U.S.
Consumer Product Safety Commission.
Read this manual carefully.
It contains important safety information.

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  • Page 1 OWNER'S MANUAL Mongoose 270i OFF-ROAD Do not remove this Owner’s Manual from this ATV according to the guidelines and agreement with the U.S. Consumer Product Safety Commission. Read this manual carefully. It contains important safety information.
  • Page 2 KYMCO is certificated to ISO9001, ISO13485, ISO14001, OHSAS18001, etc.; and accredited to ISO17025. Details at http://www.kymco.com/...
  • Page 3 Dear KYMCO MXU 270i Users: Thank you for purchasing this KYMCO Mongoose 270i and welcome to the family of KYMCO Mongoose 270i riders. To enjoy safety and more pleasant riding, become thoroughly familiar with this owner manual before you ride the Mongoose 270i.
  • Page 4 IMPORTANT NOTICES READ THIS MANUAL CAREFULLY Your Owner's Manual contains important information on safety, operation, and maintenance. Any one who operates this ATV should carefully read and understand the contents of this manual before riding the vehicle. RIDER TRAINING Anyone who operates this vehicle should get proper instruction. FOR OFF-ROAD USE ONLY This vehicle is designed and manufactured for off-road use only.
  • Page 5 SPECIAL MESSAGES KYMCO provides many important safety messages both in this manual and on the vehicle. For your safety and the safety of others, pay special attention to all warnings preceded by this alert symbol . Failure to follow the warnings contained in this manual can result in SERIOUS INJURY or DEATH.
  • Page 6 PREFACE Congratulations on your purchase of the KYMCO ATV. KYMCO take pride in a worldwide reputation for quality-in research, design, production and service. For replacement parts and accessories, we recommend genuine KYMCO products. They've been specially designed for your vehicle and manufactured to meet KYMCO's demanding standards.

  • Page 7: Table Of Contents

    CONTENTS Page Page LOCATION OF THE WARNING AND CONTROL FUNCTIONS......17 SPECIFICATION LABELS......1 Ignition switch........17 Indicator lamps........18 Handlebar switches......20 Throttle lever........22 SAFETY INFORMATION......5 Speed limiter........23 Front brake ........24 Rear brake .........24 DESCRIPTION AND MACHINE Parking brake........25 IDENTIFICATION........11 Drive select lever.........26 Key identification number.....11 Fuel tank cap ........26 Frame and engine serial number....12 Seat...........29...
  • Page 8 Page Page PRE-OPERATION CHECKS......31 Parking ..........51 Drive select lever ........32 Parking on a slope ......52 Front and rear brakes......35 Loading ..........53 Fuel ...........36 Accessories ........54 Engine and transmission oil ....38 Riding Your ATV ........56 Chain ..........39 GETTING TO KNOW YOUR ATV ..57 Throttle lever........39 Fittings and fasteners......39 RIDE WITH CARE AND GOOD...
  • Page 9 Page Page PERIODIC MAINTENANCE AND Rear swing arm lubrication ....124 ADJUSTMENT.........97 Draining the V-belt compartment..125 Tool kit..........97 Cable inspection and lubrication..125 PERIODIC MAINTENANCE/ Wheel removal.........126 LUBRICATION........99 Wheel installation......126 Engine oil .........101 Battery ..........127 Transmission oil........105 Fuse replacement......129 Spark plug inspection......107 Air filter cleaning........108 Headlight beam adjustment....130 Spark arrest cleaning......130...
  • Page 10 Page NOISE REGULATION......142 MAINTENANCE RECORD.......143 INDEX...........144...

  • Page 11: Location Of The Warning And Specification Labels

    LOCATION OF THE WARNING AND SPECIFICATION LABELS HANG TAG...
  • Page 12 Anyone who rides the vehicle should read and understand this information before riding. They contain important information for safe and proper operation of your ATV. The labels should be considered as permanent parts of the vehicle. If a label comes off or becomes hard to read, contact your KYMCO dealer for replacements.
  • Page 14 DECAL OF EPA CERTIFICATE LABEL OF SVIA Under seat...

  • Page 15: Safety Information

    SAFETY INFORMATION AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles differently from other vehicles including motorcycles and cars. An accident can occur quickly, even during routine maneuvers such as turning and riding on hills or over obstacles, if you fail to take proper pre- cautions.
  • Page 16 •Never operate an ATV without wearing an approved motorcycle helmet that fits properly. You should also wear eye protection (goggles or face shield), gloves, boots, long-sleeved shirt or jacket, and long pants. •Never consume alcohol or drugs before or while operating this ATV. •Never operate at speeds too fast for your skills or the conditions.
  • Page 17 •Always follow proper procedures for climbing hills as described in this manual. Check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. Shift your weight forward. Never open the throttle suddenly. Never go over the top of a hill at high speed.
  • Page 18 •Always check for obstacles before operating in a new area. Never attempt to operate over large obstacles, such as large rocks or fallen trees. Always follow proper procedures when operating over obstacles as described in this manual. •Never operate an ATV in fast flowing water or in water deeper than that recommended in this manual.
  • Page 19 WARNING HOW TO AVOID THE HAZARD POTENTIAL HAZARD If you should swallow some gasoline or inhale a lot Improper handling of gasoline. of gasoline vapor, or get some gasoline in your WHAT CAN HAPPEN eyes, see your doctor immediately. Gasoline can catch fire and you could be If gasoline spills on your skin, wash with soap and burned.
  • Page 20 WARNING POTENTIAL HAZARD Starting or running the engine in a closed area. WHAT CAN HAPPEN Exhaust fumes are poisonous and may cause loss of consciousness and death within a short time. HOW TO AVOID THE HAZARD Always operate your machine in an area with adequate ventilation.

  • Page 21: Description And Machine Identification

    DESCRIPTION AND MACHINE IDENTIFICATION Identification number records Key identification number Record the key identification number, frame The key identification number is stamped on serial number, engine serial number and the hang tag as shown in the following model code information for assistance when illustration.

  • Page 22: Frame And Engine Serial Number

    Frame and engine serial number The frame serial number is stamped on the front of the frame. The engine serial number is stamped on the left crankcase. (1) Frame serial number (2) Engine serial number...

  • Page 23: Parts Location

    Parts location (05) (04) (03) (02) (01) (01) Headlight (02) Headlight switch Starter button Engine stop switch Passing signal switch (03) Drive select lever (04) Throttle lever (05) Seat...
  • Page 24 (09) (08) (07) (06) (06) Front brake lever (07) Fuel Tank (08) Tool kit (09) Taillight / Stop light (10) Reservoir water tank (11) Rear brake pedal fluid reservoir (12) Engine oil inspection window (10)(11) (12)
  • Page 25 (15) (14) (13) (13) Exhaust system (14) Seat (15) Rear brake lever (16) Front wheel (17) Rear wheel (18) Seat lock lever (16) (17) (18)
  • Page 26 (18) Flat pole bracket (22) (21) (20) (19) (18) (19) Right operator footpeg (20) Rear brake pedal (21) Front parking brake (22) Ignition switch (23) Rear parking brake (24) Coolant temperature warning lamp High beam indicator lamp Neutral indicator lamp Reverse indicator lamp (25) Fuel fill cap (26) Left operator footpeg...

  • Page 27: Control Functions

    CONTROL FUNCTIONS IGNITION SWITCH/HEADLIGHT & POSITION LIGHT SWITCH Functions of the respective switch positions are as follows: "OFF" position: All electrical circuits are switched off. The key can be removed in this position. "ON" position : With the engine stop switch at run ( ) and the transmission in neutral and set the parking (1) Ignition switch...

  • Page 28: Indicator Lamps

    Indicator lamps Neutral indicator lamp The neutral indicator lamp will light when the transmission is in neutral and the ignition switch is ON. High beam indicator lamp The high beam indicator lamp will light when the headlight switch to select high beam ( )and the ignition switch is ON.
  • Page 29 2. Restart after making sure that the light is out. Continuous use while the light is on Coolant temperature Ask a KYMCO dealer to may cause damage to the engine. and electrical circuit inspect the electrical are OK. Go ahead with circuit.

  • Page 30: Handlebar Switches

    Handlebar switches Stater button To starter the engine, press the starter button, with the transmission in neutral, the ignition switch is ON and the engine stop switch at RUN CAUTION: See starting instructions prior to starting engine. NOTE: (1) Headlight switch (2) Starter button If the starter switch is pushed with the ignition Headlight switch...
  • Page 31 (3)Engine stop switch Engine stop switch When the switch is in the RUN ( ) position, the engine will operate. When the switch is in OFF ) position, the engine will not operate. NOTE: This switch is intended primarily as a safety or If you stop your ATV by turning the engine stop emergency control, and it should normally switch OFF (...

  • Page 32: Throttle Lever

    Check the operation of the throttle lever before you start the engine. If it does not work smoothly, check for the cause. Correct the problem before riding the ATV. Consult a KYMCO dealer if you can't find or solve the problem yourself. (1) Throttle lever...

  • Page 33: Speed Limiter

    Speed limiter The speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Screwing in the adjuster limits the maximum engine power available and decreases the maximum speed of the ATV. WARNING POTENTIAL HAZARD Improper adjustment of the speed limiter and throttle.

  • Page 34: Front Brake

    Front brake Rear brake The front brakes are operated by squeezing the The rear brake is operated either by depressing front brake lever. the brake pedal or by squeezing the rear brake lever, near left handgrip. (1) Front brake lever (1) Rear brake lever (2) Rear brake pedal...

  • Page 35: Parking Brake

    Parking brake WARNING To set the parking brake, squeeze the front brake lever and lock it with the lock lever. Always POTENTIAL HAZARD set the parking brake when parking and before Improper use of the parking brake. starting the engine. To unlock the parking brake, squeeze the front WHAT CAN HAPPEN brake lever until the lock lever releases.

  • Page 36: Drive Select Lever

    Drive select lever Fuel tank cap The drive select lever is used for driving the After refueling, be sure to tighten the fuel tank machine either forward or in reverse. cap until it clicks. Insert the breather tube into the handlebar cover hole.
  • Page 37 MEMO...
  • Page 38 MEMO...

  • Page 39: Seat

    To install the seat, align the tabs on the seat with Seat the grommets on the frame and press the seat To remove the seat, pull right the seat lock lever down until it locks. and pull up the seat the rear. NOTE: Make sure that the seat is securely fitted.

  • Page 40: Flag Pole Bracket

    Flag pole bracket Flag pole bracket Storage compartment To mount a pole in the bracket, follow the To mount a pole in the bracket, follow the The storage compartment is located under the instructions that come with the flag pole kit. instructions that come with the flag pole kit.

  • Page 41: Pre-Operation Checks

    PRE-OPERATION CHECKS Before using this machine, check the following points: ROUTINE PAGE ITEM •Check the lever for proper operation. 32〜35 Drive select lever •Check operation, condition, and brake fluid level. 35〜36, 118 Brake •Fill with DOT 4 brake fluid if necessary. •Check fuel level.

  • Page 42: Drive Select Lever

    Drive select lever WARNING CAUTION: POTENTIAL HAZARD Before shifting, you must stop the machine Failure to inspect the ATV before operating. and return the throttle lever to its closed Failure to properly maintain the ATV. position until the engine speed to the specified idling speed.
  • Page 43 WARNING POTENTIAL HAZARD Operating with improperly adjusted drive select lever. WHAT CAN HAPPEN You may lose control of the gear shifting, which lead to accident. HOW TO AVOID THE HAZARD (1) Drive select lever Make sure moving the shift lever into the (N) Neutral "N"...
  • Page 44 Drive select lever adjustment Turn the ignition switch is ON and make sure the engine stop switch in the OFF " " position. Loosen the locknuts of rod. Shift the gear to neutral by moving the shift lever and/or turn the rod. (The neutral indicator lamp comes on.) Provide standard/phillips screwdriver (tool kit) and pass the standard/phillips screwdriver...

  • Page 45: Front And Rear Brakes

    Check operation of the levers. They should move smoothly and there should be a firm feeling when the brake is applied. If not, have the machine inspected by a KYMCO dealer. Brake operation Test the brakes at slow speed after starting out to make sure they are working properly.

  • Page 46: Fuel

    If a problem cannot be corrected by the adjustment procedures provided in this manual, have (1) Fuel neck the ATV inspected by a KYMCO dealer. Recommended fuel: UNLEADED FUEL Fuel tank capacity: Total: 12.5 L (2.7 lmp gal, 3.2 US gal)
  • Page 47 Your KYMCO engine has been designed to use WARNING regular unleaded gasoline with a pump octane number of 86 or higher, or research octane POTENTIAL HAZARD number of 91 or higher. If knocking or pinging Improper care when refueling. occurs, use a different brand of gasoline or premium unleaded fuel.

  • Page 48: Engine And Transmission Oil

    Engine and transmission oil CAUTION: Make sure the engine and transmission oil at the Be sure to use motor oils that do not specified level. Add oil as necessary. contain anti-friction modifiers. Passenger Check for leaks. car motor oils (often labeled "Energy Conserving") contain anti-friction additives which will cause starter clutch 110 F...

  • Page 49: Chain

    Repair as necessary for proper operation. necessary for proper operation. Fittings and fasteners Always check the tightness of chassis fittings and fasteners before a ride. Take the machine to a KYMCO dealer or refer to the Service Manual for correct tightening torque.

  • Page 50: Tires

    2.The tires should be set to the Tires recommended pressure: WARNING •Recommended tire pressure POTENTIAL HAZARD Front 25~32 kpa (0.25~0.32 kgf/cm , Operating this ATV with improper tires, or 3.5~4.5 psi) with improper or uneven tire pressure. Rear 25~32 kpa (0.25~0.32 kgf/cm , 3.5~4.5 psi) WHAT CAN HAPPEN •Check and adjust tire pressures when the...

  • Page 51: How To Measure Tire Pressure

    Set pressure tires cold. 4.Higher pressures may cause the tire to Set tire pressures to the following burst. Inflate the tires very slowly and specifications: carefully. Fast inflation could cause the Recommended tire to burst. Minimum Maximum pressure 25 kpa 28 kpa 32 kpa Front...

  • Page 52: Tire Wear Limit

    Coolant Tire wear limit Check the coolant level in the reservoir tank When the tire groove decreases to 3 mm (0.12 when the engine is cold. (The coolant level in) due to wear, replace the tire. will vary with engine temperature.) The coolant level is satisfactory if it is between the "FULL"...
  • Page 53 (2) Maximum level mark the radiator cap. Always use a thick rag (3) Minimum level mark over the cap. Allow any remaining pressure to escape before completely removing the cap. Should be serviced by your authorized KYMCO dealer when changing the coolant.

  • Page 54: Operation

    HOW TO AVOID THE HAZARD Read the Owner's Manual carefully. If there When riding in cold weather, always make is a control or function you do not sure all control cables work smoothly understand, ask your KYMCO dealer. before you begin riding.
  • Page 55 When the select lever is in the neutral or park position, if  start-ambient temperature below -18 C (0 F). either indicator light does not come on, ask a KYMCO dealer to inspect its electric circuit. If the engine fails to start, release the start switch, then push ...

  • Page 56: Starting A Warm Engine

    CAUTION: See the "engine break-in section prior to operating engine for the first time. Starting a warm engine To start a warm engine, refer to the "Starting a cold engine" section. The starter (choke) should not be used. The throttle should be opened slightly.

  • Page 57: Drive Select Lever Operation And Reverse Driving

    Drive select lever operation and reverse driving CAUTION: Before shifting, you must stop the machine and return the throttle lever to its closed position until the engine speed to the specified idling speed. Otherwise, the transmission may be damaged. (1) Drive select lever (N) Neutral 1.Shifting : forward (F) Forward...
  • Page 58 When in reverse, the reverse indicator light Improperly operation in reverse. should be on. If the light does not come on, ask a KYMCO dealer to inspect the machine. WHAT CAN HAPPEN You could hit an obstacle or person behind D.

  • Page 59: Engine Break-In

    20 hours. If any abnormality is noticed during this period, For this reason, we ask that you carefully read consult a KYMCO dealer. the following material. Because the engine is brand new, you must not put an excessive load 1.
  • Page 60 2. 10~20 hours: Avoid prolonged operation above 3/4 throttle. Rev the machine freely through the gears but do not use full throttle at any time. 3. After break-in Avoid prolonged full throttle operation. Vary speeds occasionally.

  • Page 61: Parking

    Parking When parking, stop the engine and shift into neutral. Turn the fuel lock to "OFF" and apply the parking brake. The front brake lever has two locked position that allow it to be used as a parking brake. To set the parking brake. (1) Locked position (3) Certainly locked position (2) Lock lever...

  • Page 62: Parking On A Slope

    1. Bring the machine to a stop by applying the Parking on a slope brakes. WARNING 2. Stop the engine. 3. With the rear brake applied, apply the rear POTENTIAL HAZARD parking brake. Parking on a hill or other incline. 3.

  • Page 63: Loading

    •Tie down cargo securely to the carriers. Make Loading sure cargo in the trailer cannot move around. As originally equipped, this ATV is not designed to carry cargo or tow a trailer. If you choose to •A shifting load can cause an accident. add accessories so that you can carry cargo or •Make sure the load does not interfere with tow a trailer, you must use common sense and...

  • Page 64: Accessories

    •Choose only accessories designed for your WHAT CAN HAPPEN ATV. Your KYMCO dealer has a variety of genuine KYMCO accessories. Other Could cause changes in vehicle handling accessories may also be available on the which could lead to an accident.
  • Page 65 •Do not mount an accessory where it could interfere with your ability to control the ATV. Examples include (but are not limited to) a heavy or bulky object attached to the handlebars which could make steering difficult, an accessory that limits your ability to move around on the seat, or one that limits your view.

  • Page 66: Riding Your Atv

    Riding Your ATV...

  • Page 67: Getting To Know Your Atv

    GETTING TO KNOW YOUR ATV This ATV is for recreation use. This section, WARNING riding your ATV, provides general ATV riding instructions for recreational riding. The skills Indicates a strong possibility that serious and techniques described in this section, injury or death may result if instructions are however, are appropriate for all types of riding.

  • Page 68: Ride With Care And Good

    RIDE WITH CARE AND GOOD JUDGEMENT HOW TO AVOID THE HAZARD Become familiar with this ATV at slow Get training if you are inexperienced. speeds first, even if you are an experienced Beginners and inexperienced riders should get operator. proper instruction on how to operate this ATV. Do not attempt to operate at maximum performance until you are totally familiar with the machine's handling and...
  • Page 70 Apparel Operating without protective clothing WARNING increases your chances of severe injury in POTENTIAL HAZARD the event of an accident. Operating this ATV without wearing an approved motorcycle helmet, eye HOW TO AVOID THE HAZARD protection and protective clothing. Always wear an approved motorcycle helmet that fits properly.
  • Page 71 Do not operate after consuming alcohol or WARNING drugs. POTENTIAL HAZARD Operator's performance capability is reduced by Operating this ATV after consuming the influence of alcohol or drugs. alcohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly. Could affect your balance and perception.
  • Page 72 This machine is designed to carry operator only-passengers prohibited. WARNING POTENTIAL HAZARD Carrying a passenger on this ATV. WHAT CAN HAPPEN Greatly reduces your ability to balance and control this ATV. Could cause an accident, resulting in harm to you and/or your passenger.
  • Page 73 Pre-operation checks Always perform the pro-operation checks listed on page 31 before riding for safety and proper WARNING care of the machine. POTENTIAL HAZARD Operating this ATV with improper tires, or WARNING with improper or uneven tire pressure. POTENTIAL HAZARD WHAT CAN HAPPEN Failure to inspect the ATV before operating.
  • Page 74 Speed limiter Do not operate at speeds too fast your skills For riders inexperienced with this model, this or the conditions. model is equipped with a speed limiter in the throttle lever housing. The speed limiter limits WARNING the power and top speed of the machine. POTENTIAL HAZARD Turning the screw in decreases top speed, and Operating this ATV at speeds too fast for...
  • Page 75 Loading and accessories Loading and Operational Guidelines This ATV is not designed to carry or tow a trailer. Load Limits If you decide to add accessories to allow you to There are limits to how much weight can be carry cargo or tow a trailer, use common sense. carried on your ATV.
  • Page 76 WARNING Genuine KYMCO accessories have been specifically designed for and tested on this POTENTIAL HAZARD vehicle. Because KYMCO cannot test all other Overloading this ATV or carrying or towing accessories, you are personally responsible for cargo improperly. properly selecting, installing, and using non- KYMCO accessories.
  • Page 77 Never modify this ATV through improper installation or use of accessories. All parts and accessories added to this vehicle should be genuine KYMCO or equivalent components designed for use on this ATV and should be installed and used according to instruction. If you have question, consult...
  • Page 78 Exhaust system The exhaust on the machine is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the machine in a place where pedestrians or children are not likely to touch it. WARNING POTENTIAL HAZARD Hot exhaust system WHAT CAN HAPPEN Someone touching the exhaust system...

  • Page 79: Be Careful Where You Ride

    BE CAREFUL WHERE YOU RIDE This machine is designed for off-road use only. Riding on paved surfaces can cause loss of control. WARNING POTENTIAL HAZARD Operating this ATV on paved surfaces. WHAT CAN HAPPEN ATV are designed for off-road use only. Paved surfaces may seriously affect handling and control of the ATV, and may cause the vehicle to go out of control.
  • Page 80 Do not ride on any public road, street, or highway. Riding on public roads can result in collisions with other vehicles. WARNING POTENTIAL HAZARD Operating this ATV on public streets, roads or highways. WHAT CAN HAPPEN You can collide with another vehicle. HOW TO AVOID THE HAZARD Never operate this ATV on any public street, road or highway, even a dirt or gravel one.
  • Page 81 Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden hazards which may cause the machine to upset. WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain.
  • Page 82 WARNING POTENTIAL HAZARD Failure to use extra care when operating on excessively rough, slippery or loose terrain. WHAT CAN HAPPEN Could cause loss of traction or vehicle control, which could result in an accident, including an overturn. HOW TO AVOID THE HAZARD Do not operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills necessary...
  • Page 83 When riding in an area where you might not WHAT CAN HAPPEN easily be seen, such as desert terrain, mount a You could be in a collision. You could be caution flag on the machine. DO NOT use the injured. flag pole bracket as a trailer hitch.
  • Page 84 FOR OFF-ROAD USE ONLY This vehicle is designed and manufactured for off-road use only. Do not ride in areas posted "no trespassing". Do not ride on private property without getting permission.
  • Page 85 Select a large, flat area off-road to become With the engine idling, return the starter knob to familiar with your ATV. Make sure that this area the closed position and shift the drive select is free of obstacles and other riders. You should lever into the forward position.
  • Page 86 During operation WARNING Always keep your feet on the footpegs during POTENTIAL HAZARD operation. Otherwise your feet may contact the rear wheels. Removing hands from handlebars or feet from footboards during operation. WHAT CAN HAPPEN Removing even one hand or foot can reduce your ability to control the ATV or could cause you to lose your balance and fall a footpeg, your foot or leg may come...
  • Page 87 Avoid wheelies and jumping. You may lose control of the machine or overturn. WARNING POTENTIAL HAZARD Attempting wheelies, jumps, and other stunts. WHAT CAN HAPPEN Increases the chance of an accident, including an overturn. HOW TO AVOID THE HAZARD Never attempt stunts, such as wheelies or jumps.

  • Page 88: Turning Your Atv

    TURNING YOUR ATV HOW TO AVOID THE HAZARD To achieve maximum traction while riding off- Always follow proper procedures for road, the two rear wheels are mounted solidly turning as described in this Owner's on one axle and turn together at the same Manual.
  • Page 89 Once you have learned this technique you should be able to perform it at higher speeds or in tighter curves. Improper riding procedures such as abrupt throttle changes, excessive braking, incorrect body movements, or too much speed for the sharpness of the turn may cause the ATV to tip. If the ATV begins to tip over to the outside while negotiating a turn, lean more to the inside.

  • Page 90: Sliding And Skidding

    If the rear wheels of your ATV start to slide SLIDING AND SKIDDING sideways, control can usually be regained (if Care should be used when riding on loose or there is room to do so) by steering in the slippery surfaces since the ATV may slide. If direction of the slide.
  • Page 91 With practice, over a period of time, skill at WARNING controlled sliding can be developed. The terrain should be chosen carefully before attempting POTENTIAL HAZARD such maneuvers, since both stability and control Skidding or sliding improperly. are reduced. Bear in mind that sliding maneuvers should always be avoided on WHAT CAN HAPPEN extremely slippery surfaces such as ice, since...

  • Page 92: Climbing Uphill

    CLIMBING UPHILL WARNING Use proper riding techniques to avoid vehicle overturns on hills. Be sure that you can POTENTIAL HAZARD maneuver your ATV well on flat ground before Operating on excessively steep hills. attempting any incline and then practice riding first on gentle slopes.
  • Page 93 WARNING An obstacle, a sharp drop, or another vehicle or person could be on the other POTENTIAL HAZARD side of the hill. Climbing hills improperly WHAT CAN HAPPEN Could cause loss of control or cause the ATV to overturn. HOW TO AVOID THE HAZARD Always follow proper procedures for climbing hills as described in this Owner's Manual.
  • Page 94 If you are climbing a hill and you find that you When crossing the side of a hill: have not properly judged your ability to make it Always follow proper procedures as to the top, you should turn the ATV around while described in the Owner's Manual.
  • Page 95 If your ATV has stalled or stopped and you WARNING believe you can continue up the hill, restart POTENTIAL HAZARD carefully to make sure you do not lift the front wheels which could cause you to lose control. If Stalling, rolling backwards or improperly you are unable to continue up the hill, dismount dismounting while climbing a hill.
  • Page 96 When fully stopped, apply rear brake as well, and then lock parking brake. Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the procedure described in the Owner's Manual.
  • Page 97 If the hill is not too steep and you have good footing, you may be able to walk the ATV back down the hill. Make sure your intended path is clear in case you lose control of the ATV . If you decide you can walk the ATV safely: 1.

  • Page 98: Riding Downhill

    RIDING DOWNHILL WARNING When riding your ATV downhill, shift your weight POTENTIAL HAZARD as far to the rear and uphill side of the ATV as possible. Move back on the seat and sit with Going down a hill improperly. your arms straight. Improper braking may cause a loss of traction.

  • Page 100: Crossing A Slope

    CROSSING A SLOPE WARNING Traversing a sloping surface on your ATV POTENTIAL HAZARD requires you to properly position your weight to Improperly crossing hills or turning on maintain proper balance. Be sure that you have hills. learned the basic riding skills on flat ground before attempting to cross a sloping surface.
  • Page 101 Shift your weight to the uphill side of the ATV.

  • Page 102: Riding Over Rough Terrain

    RIDING OVER ROUGH TERRAIN WARNING Riding over rough terrain should be done with POTENTIAL HAZARD caution. Look out for obstacles which could Improperly operating over obstacles. cause damage to the ATV or could lead to an upset or accident. Be sure to keep your feet firmly mounted on the footboards at all time.

  • Page 103: Crossing Through Shallow Water

    CROSSING THROUGH SHALLOW WATER Remember that wet brakes may have The ATV can be used to cross slow moving, reduced stopping ability. Test your brakes shallow water of up to a maximum of 20 cm (7.9 after leaving water. If necessary, apply inches) in depth.
  • Page 104 Test your brakes after leaving the water. Do not PARKING continue to ride your ATV without verifying that Always choose a level place to park. After you have regained proper braking ability. bringing your ATV to a stop, hold the brakes while you shift into neutral.

  • Page 105: What To Do If

    If your ATV starts to slide sideways: WHAT TO DO IF This section is designed to be a reference guide Steer in the direction of the slide if you have the only. Be sure to read each section on riding room.
  • Page 106 If your ATV is traversing a sloping surface: Be sure to ride with your weight positioned towards the uphill side of the ATV to maintain proper balance. If the ATV starts to tip, steer down the hill (if there are no obstacles in your way) to regain balance.

  • Page 107: Periodic Maintenance And Adjustment

    PERIODIC MAINTENANCE AND Have KYMCO dealer perform service if you are not familiar with machine service. ADJUSTMENT Periodic inspection, adjustment and lubrication Tool kit will keep your machine in the safest and most A tool kit is provide with your ATV.
  • Page 108 The tools in the kit are sufficient to perform WARNING routine maintenance and simple repairs. Any extensive work requiring additional tools should POTENTIAL HAZARD be performed by your authorized KYMCO Operating this ATV with improper dealer. modifications. The tool kit includes the following items:...

  • Page 109: Periodic Maintenance/Lubrication

    PERIODIC MAINTENANCE/LUBRICATION INITIAL EVERY ITEM ROUTINE year month months months months •Replace (Warm engine before draining). Engine oil •Clean. Oil strainer* •Replace if necessary. •Check oil level/oil leakage. Transmission oil •Replace every 12 months. •Check operation. V-belt* •Replace if damage or excessive wear. Air filter element •Clean.
  • Page 110 •Lubricate every 6 months. Steering shaft* •Check all chassis fittings and fasteners. Fittings and Fasteners* •Correct if necessary. •Clean Spark arresterl : It is recommended that these items be serviced by a KYMCO dealer. ** : Lithium soap base grease.

  • Page 111: Engine Oil

    Engine oil 1.Engine oil level measurement A. Place the machine on a level place. B. Warm up the engine for several minutes and stop it. C. Check the oil level through the inspection window. D. The oil level should be between the maximum (H) and minimum (L) marks.
  • Page 112 2-1. Engine oil replacement and oil filter cleaning A. Place the machine on a level place. B. Warm up the engine for several minutes and stop it. C. Place a container under the engine. D. Remove the oil fill cap(1) and oil filter cap (2) to drain the oil.
  • Page 113 H. Fill the engine with oil and install the oil fill E. Clean the oil strainer with solvent. cap. F. Inspect the O-ring and replace if damaged. G. Reinstall the O-ring, oil strainer, compression Recommended oil: see page 139 spring and oil filter cap. Tighten the oil filter Oil quantity: cap to specification.
  • Page 114 2-2. Engine oil replacement A. Place the machine on a level place. B. Warm up the engine for several minutes and stop it. C. Place a container under the engine. D. Remove the oil fill cap (1) and drain plug to (2) drain the oil.

  • Page 115: Transmission Oil

    Transmission oil Transmission oil replacement 1. Place the machine on a level place. 2. Place a container under the engine. 3. Remove the oil filler bolt (1) and drain plug (2) to Drain the oil. 4. Reinstall the drain plug and tighten to Specification.
  • Page 116 5. Fill the engine with oil and install the oil filler 6. Start the engine and warm up for a few minutes. bolt. While warming up, check for oil leakage. If oil leakage is found, stop the engine immediately and Recommended oil : See page 139.

  • Page 117: Spark Plug Inspection

    Do not attempt to diagnose such problems yourself. Instead, take the machine to a KYMCO dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.

  • Page 118: Air Filter Cleaning

    Air filter cleaning The air cleaner accumulates dust and must be cleaned periodically. If the ATV is ridden in dusty areas, the air cleaner must be cleaned at more frequent intervals than specified in the Maintenance Schedule. If the ATV is submerged in water, the air cleaner should be checked and water should be drained from the air cleaner housing before starting the engine.
  • Page 119 4. Remove the screw (6) and remove the air cleaner assembly from the air cleaner holder. 5. Remove the air cleaner (7) and air cleaner screen (8) from the air cleaner guide (9). (7) Air cleaner (8) Air cleaner screen (9) Air cleaner guide (6) Screw...
  • Page 120 6. Gently wash the air cleaner in clean, non- 7. Soak the air cleaner an equivalent (gear oil: flammable (high flash point) solvent such as SAE 80 - 90) until saturated, then squeeze out kerosene ―not gasoline. Allow the air cleaner the excess oil.
  • Page 121 Air cleaner housing drain tube The air cleaner housing drain tube should be serviced in accordance with the Maintenance Schedule. (Riding through water may require more frequent inspection.) If deposits can be seen in the drain tube, the tube must be cleaned before starting the vehicle.
  • Page 122 Filter for V-belt compartment The air filter should be serviced in accordance with the Maintenance Schedule. (Riding through water may require more frequent inspection.) To clean the air filter: 1. Remove the screws and remove air filter housing. 2. Remove the air filter from the housing. 3.
  • Page 123 MEMO...

  • Page 124: Throttle Lever Adjustment

    Throttle lever adjustment NOTE: Adjust the engine idling speed before adjusting the throttle lever free play. To adjust throttle free play: 1. Slide the rubber sleeve back to expose the throttle cable adjuster. (2) (3) 2. Loosen the lock nut, then turn the adjuster to obtain the correct free play.

  • Page 125: Valve Clearance Adjustment

    Valve clearance adjustment The correct valve clearance changes with use, resulting in improper fuel/air supply or engine noise. To prevent this, the valve clearance must be adjusted regularly. This adjustment however, should be left to a professional KYMCO service technician.
  • Page 126 (1) Rear brake pads cover (Rear brake lever) (1) Rear brake pads cover (Rear brake pedal) (2) Rear brake pads (Rear brake lever) (2) Rear brake pads (Rear brake pedal) (3) Wear indicator (3) Wear indicator...
  • Page 127 MEMO...

  • Page 128: Brake Fluid Inspection

    Brake fluid inspection Check if the fluid level is below the lower level mark through the inspection window. WARNING POTENTIAL HAZARD Brake fluid contacting the skink or eyes. WHAT CAN HAPPEN May cause irritation. (1) Lower level mark (Hand Brake lever) HOW TO AVOID THE HAZARD Avoid contacting brake fluid with the skin or eyes.
  • Page 129 , There is probably air in prevent accidental spilling. the brake system and it must be bled. See •Use only DOT 4 brake fluid from a sealed your authorized KYMCO dealer for this container. service.

  • Page 130: Cooling System Inspection

    Hard water or salt water is harmful to the engine. You may use distilled water if rou NOTE: 1. If water is added, have a KYMCO dealer can not get soft water. check the antifreeze content of the coolant as soon as possible.
  • Page 131 Should be serviced by your authorized KYMCO dealer when changing the coolant. Restart the engine. If the engine overheats again, ask a KYMCO dealer to inspect and/or repair the cooling system NOTE: If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it...

  • Page 132: Drive Chain Slack Check

    Drive chain slack check Drive chain slack adjustment: Inspect the drive chain while all tires are 1. Loosen the hub stopper bolt(1) and two axle touching the ground. Check the slack at the hub holding bolts(2). position shown in the figure. The normal vertical deflection is approximately 30~40 mm (1.18~1.6in).
  • Page 133 2. Provide standard/phillips screwdriver (tool kit) and pass the standard/phillips screwdriver (5) through the axle hub (4) and driven sprocket holder (3) holes. 3. To tighten the chain, push the ATV forward. To loosen the chain, pull the ATV backward. 4.

  • Page 134: Drive Chain Cleaning And Lubrication

    Drive chain cleaning and lubrication Rear swing arm lubrication The drive chain is equipped with rubber O-rings Lubricate the pivot points using a grease gun. between the chain plates. Steam cleaning, high- pressure washes, and certain solvents can damage these O-rings. Use only kerosene to clean the drive chain.

  • Page 135: Draining The V-Belt Compartment

    Inspect cables frequently. Replace damaged cables. Lubricate the inner cables and the cable ends. If the cables do not operate smoothly, ask a (1) Drain bolt KYMCO dealer to replace them. Recommended lubricant: KYMCO chain and cable lube or SAE 10W40 motor oil...

  • Page 136: Wheel Removal

    Be sure the tapered side of the wheel nuts face Wheel removal 1. Elevate the wheel by placing a suitable stand the wheel rim. under the frame. 2. Remove the nuts from the wheel. 3. Remove the wheel assembly. (1) Wheel nut (2) Wheel rim WARNING (1) Safe nut...

  • Page 137: Battery

    If battery. the battery seems weak, see your authorized KYMCO dealer for information on recharging or WHAT CAN HAPPEN replacement. If you replace the battery, choose one Gases may explode and possibly cause injury.
  • Page 138 Battery remove 1. Make sure the ignition switch is OFF. 2. Remove the seat 3. Remove the battery holder (1), by removing the (3) Negative (-) terminal lead (1) Battery holder mount bolts (2). 4. Disconnect the negative (-) terminal lead from the battery first, then disconnect the positive (+) terminal lead (4).

  • Page 139: Fuse Replacement

    2. Remove the seat Fuse replacement The fuse box (2) stored in the battery compartment 3. Open the fuse box cap (3). under the seat. The fuse box contains a spare fuse. 4. Pull the old fuse out of the fuse holder. The specified fuse is: 30 A 5.

  • Page 140: Headlight Beam Adjustment

    Spark arrester cleaning Be sure the exhaust pipe and muffler are cool CAUTION: before cleaning the spark arrester. It is advisable to have a KYMCO dealer make 1. Remove the bolt (1). this adjustment. Vertical adjustment: Turn the ignition switch ON and start the engine.
  • Page 141 2. Remove the tailpipe (2) by pulling it out of the WARNING muffler. 3. Tap the tailpipe lightly, then use a wire brush POTENTIAL HAZARD to remove any carbon deposits from the spark Improper cleaning of the spark arrester. arrester (3) portion of the tailpipe. WHAT CAN HAPPEN Could injure the eyes.

  • Page 142: Troubleshooting

    The troubleshooting chart describes a quick, easy procedure for making checks. If your WHAT CAN HAPPEN machine requires any repair, take it to a KYMCO Fuel can ignite or explode, causing severe dealer. injury or property damage.

  • Page 143: Cleaning And Storage

    CLEANING AND STORAGE CAUTION: Excessive water pressure may cause water A. CLEANING seepage and deterioration of wheel Frequent, thorough cleaning of your machine bearings, brakes, transmission seals and will not only enhance its appearance but will electrical devices. Many expensive repair improve its general performance and extend the bills have resulted from improper high useful life of many components.
  • Page 144 7. Clean the seat with a vinyl upholstery WARNING cleaner to keep the cover pliable and POTENTIAL HAZARD glossy. Operation with wet brakes after washing. 8. Automotive type wax may be applied to all painted and chrome plated surfaces. Avoid WHAT CAN HAPPEN combination cleaner-waxes.

  • Page 145: Storage

    B. STORAGE WARNING Before storing your ATV for an extended time, be POTENTIAL HAZARD sure you thoroughly check the vehicle for Refueling this ATV or handling fuel needed repairs and have them corrected. improperly. Otherwise, the repairs may be forgotten by the time you remove the vehicle from storage.
  • Page 146 4. Remove the battery and store it in an area WARNING protected from freezing temperatures and POTENTIAL HAZARD direct sunlight and out of the reach of Prolonged contact of fuel with the skin. children, slow charge the battery once a Breathing fuel vapor.

  • Page 147: Specifications

    SPECIFICATIONS Mongoose 270i Model Dimension: Overall length 1720 mm (68.8 in) Overall width 1135 mm (44.6 in) Overall height 1080 mm (43.2 in) Seat height 840 mm (33.6 in) Wheel base 1180 mm (47.2 in) Minimum ground clearance 250 mm (9.8 in) Minimum turning radius 2900 mm (114.2 in) Basic weight:...
  • Page 148 Mongoose 270i Model 110 F Engine oil/transmission oil: Type SAE 5W SAE 10W－30 Recommended engine oil classification: SAE 10W－40 SAE 20W－40 SAE 20W－50 -1 0 40 C API Service SE, SF, SG type or higher Recommended transmission Oil classification: SAE #90 Quantity Engine oil: Periodic oil change...
  • Page 149 Mongoose 270i Model Air filter: for engine Wet type element for V-belt compartment Dry type element Fuel: Type UNLEADED FUEL Tank capacity 12.0 L (2.63 lmp gal, 3.17 US gal) Reserve amount 1.8 L (0.4 lmp gal, 0.47 US gal) Carburetor: Throttle Body Type...
  • Page 150 Mongoose 270i Model Suspension: Front Double A-arm Rear Swing arm Shock absorber: Front Coil spring/Oil damper Rear Coil spring/Oil damper Electrical: Ignition system ECU automatic control Generator system A.C. magneto Battery type 12V, 10AH MF Tire: Type Tubeless Size: Front 21X7-10 Rear 20X11-9...
  • Page 151 NOISE REGULATION TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) 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 or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.
  • Page 152 MAINTENANCE RECORD Copies of work orders and/or receipts for parts you purchase and install will be required to document maintenance done in accordance with the warranty. The chart below is printed only as a reminder to you that the maintenance work is required. It is not acceptable proof of maintenance work.
  • Page 153 KWANG YANG MOTOR CO.,LTD. NO.35 Wan Hsing Street, San Min District Kaohsiung, Taiwan, Republic of China Telephone : 886-7-3822526 FAX : 886-7-3950021 By KWANG YANG Motor Co., Ltd. First Edition, Dec. 2024 All rights reserved. Any reproduction or unauthorized use without the written permission of KWANG YANG Motor Co., Ltd.
  • Page 154 Part No. T200-LF60SB-A7 Issued: May. 2024...

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