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Yamaha BREEZE YFA1S Owner's Manual
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Yamaha BREEZE YFA1S Owner's Manual

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READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER'S MANUAL
YFA1S(C)
w
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-17-02
5VJ-28199-11

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  • Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFA1S(C) This ATV should not be ridden by anyone under 16 years of age. LIT-11626-17-02 5VJ-28199-11...
  • Page 3 Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields. This manual will provide you with a good basic understanding of the features and operation of this ATV. This manual includes important safety information.
  • Page 4 EBU00801 IMPORTANT MANUAL INFORMATION FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERI- OUS INJURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFE- TY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander or a person inspecting or repairing the...
  • Page 5 Please check your local riding laws and regulations before operating this machine. YFA1S (C) EBU13330 OWNER'S MANUAL © 2003 by Yamaha Motor Corporation, U.S.A. 1st edition, March 2003 AFFIX DEALER All rights reserved. LABEL HERE...

  • Page 6: Table Of Contents

    EBU00014 Indicates a potential hazard that could result in serious injury or death. CONTENTS LOCATION OF THE WARNING AND CONTROL FUNCTIONS ......4-1 SPECIFICATION LABELS .......1-1 Main switch ...........4-1 Indicator lights ........4-2 Handlebar switches ......4-2 Throttle lever ........4-4 SAFETY INFORMATION ......2-1 Speed limiter ........4-5 Front brake lever ........4-6 Rear brake lever ........4-6...
  • Page 7 PRE-OPERATION CHECKS ....5-1 Parking ..........6-7 Front and rear brakes ......5-2 Parking on a slope........6-8 Fuel ............5-3 Accessories and loading ......6-9 Engine and transmission oil ....5-5 Chain ............5-6 Throttle lever ........5-6 Riding Your ATV........7-1 Fittings and fasteners ......5-6 Getting to know your ATV .....7-3 Lights ............5-6 Ride with care and good Switches ..........5-6...
  • Page 8 PERIODIC MAINTENANCE AND Brake lever lubrication ......8-29 ADJUSTMENT .........8-1 Knuckle shaft, lower arms and Owner’s manual and tool kit ....8-1 steering shaft lubrication ....8-29 Periodic maintenance/Lubrication ..8-3 Wheel removal ........8-30 Engine oil..........8-5 Wheel installation .......8-30 Transmission oil ........8-7 Battery ..........8-31 Spark plug inspection ......8-9 Replenishing the battery fluid .....8-33 Engine and V-belt compartment...
  • Page 9 NOISE REGULATION......11-1 MAINTENANCE RECORD ....12-1 ATV LIMITED WARRANTY ....13-1 YAMAHA EXTENDED SERVICE (Y.E.S.)...........14-1...

  • Page 10: Location Of The Warning And Specification Labels

    EBU00464 LOCATION OF THE WARNING AND SPECIFICATION LABELS...
  • Page 11 They contain important information for safe and proper operation of your ATV. Never remove any labels from your ATV. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer. 5FE-21697-01 3FA-21696-41...
  • Page 12 WARNING NEVER ride as a passenger. Passengers can cause a loss of control, resulting in SEVERE INJURY or DEATH. 5FE-2151H-01 DRIVE SELECT LEVER 8 Read owner’s manual carefully before operating. 8 ATV MUST be stopped before shifting select lever. 8 Shifting into reverse is impossible without applying rear brake lever.

  • Page 13: Safety Information

    EBU00925 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. A collision or rollover 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 14 8 Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots and streets. 8 Never operate an ATV on any public street, road or highway, even a dirt or gravel one. 8 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.
  • Page 15 8 Never operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills necessary to control the ATV on such terrain. Always be especially cautious on these kinds of terrain. 8 Always follow proper procedures for turning as described in this manual. Practice turning at low speeds before attempting to turn at faster speeds.
  • Page 16 8 Always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stalling, maintain a steady speed when climbing a hill. If you stall or roll backwards, follow the special proce- dure for braking described in this manual. Dismount on the uphill side or to a side if pointed straight uphill.
  • Page 17 8 Never exceed the stated load capacity for an ATV. Cargo should be properly distributed and securely attached. Reduce speed and follow instructions in this manual for carrying cargo. Allow greater distance for braking. FOR MORE INFORMATION ABOUT ATV SAFETY , call the Consumer Products Safety Commission at 1-800-638-2772, or the ATV Distributor’s Safety Hotline at 1-800-852-5344.
  • Page 18 q WARNING Otherwise, fuel may leak out of the carbu- retor or fuel tank. POTENTIAL HAZARD WHAT CAN HAPPEN Improper handling of gasoline. Gasoline is poisonous and can cause WHAT CAN HAPPEN injuries. Gasoline can catch fire and you could be HOW TO AVOID THE HAZARD burned.
  • Page 19 q 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 ATV in an area with adequate ventilation.

  • Page 20: Description And Machine Identification

    EBU00032 DESCRIPTION AND MACHINE IDENTIFICATION 1. Seat 11. Footboard 2. Drive select lever 12. Rear brake lever 3. Headlight 13. Parking brake 4. Front cover 14. Reverse indicator light 5. Front wheel 15. Neutral indicator light 6. Starter (choke) 16. Front brake lever 7.

  • Page 21: Identification Number Records

    This tion in the spaces provided for assistance when number can be used for ordering a new key. ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. 1. KEY IDENTIFICATION NUMBER: 2.

  • Page 22: Vehicle Identification Number

    The model label is affixed to the location in the into the frame. illustration. Record the information on this label in the space provided. This information will be needed to order spare parts from your Yamaha dealer. 1. Vehicle identification number NOTE: The vehicle identification number is used to 1.

  • Page 23: Control Functions

    EBU00039 CONTROL FUNCTIONS Indicates a potential hazard that could result in serious injury or death. EBU00041 Main switch Functions of the respective switch positions are as follows: Engine can be started only at this position and the headlight and taillight come on when the light switch is on.

  • Page 24: Indicator Lights

    EBU00043 EBU00053 Indicator lights Handlebar switches w q e 1. Main switch 1. Engine stop switch “ENG. STOP“ 2. Reverse indicator light “REVERSE” 2. Light switch “LIGHTS” 3. Neutral lindicator light “NEUTRAL“ 3. Start switch “START“ EBU00044 EBU11580 Reverse indicator light “REVERSE” Engine stop switch “ENG.
  • Page 25 EBU00056 EBU12860 Start switch “START” Light switch “LIGHTS” The starter motor cranks the engine when this Set the switch to the “LO” position to switch on switch is pushed. the low beam and the taillight. Set the switch to the “HI” position to switch on the high beam and the taillight.

  • Page 26: Throttle Lever

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

  • Page 27: Speed Limiter

    EBU11590 q WARNING Speed limiter The speed limiter keeps the throttle from fully POTENTIAL HAZARD opening, even when the throttle lever is pushed Improper adjustment of the speed limiter to the maximum. Turning in the adjusting screw and throttle. limits the maximum engine power available and WHAT CAN HAPPEN decreases the maximum speed of the ATV.

  • Page 28: Front Brake Lever

    EBU00070 EBU00072 Front brake lever Rear brake lever The front brake lever is located on the right han- The rear brake lever is located on the left han- dlebar. Pull it toward the handlebar to apply the dlebar. Pull it toward the handlebar to apply the front brake.

  • Page 29: Parking Brake

    EBU00074 q WARNING Parking brake Use the parking brake when you have to start POTENTIAL HAZARD the engine or park the machine, especially on a Improper use of the parking brake. slope. Apply the rear brake lever and push down WHAT CAN HAPPEN the lock plate to apply the parking brake.

  • Page 30: Drive Select Lever

    EBU11060 EBU00092 Drive select lever Fuel tank cap The drive select lever is used to shift your Remove the fuel tank cap by turning it counter- machine into the forward, neutral and reverse clockwise. positions. (Refer to page 6-4 for the drive select lever operation.) 1.

  • Page 31: Fuel Cock

    EBU00093 Fuel cock The fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has three positions. OFF: With the lever in this position fuel will not flow. Always turn the lever to this position when the engine is not running. With the lever in this position, fuel flows to the carburetor.

  • Page 32: Starter (Choke)

    EBU00094 EBU00567 Starter (choke) Seat Starting a cold engine requires a richer air-fuel To remove the seat, pull the seat lock lever mixture. A separate starter circuit supplies this upward and pull up the seat at the rear. mixture. Move in direction a to turn on the starter (choke).
  • Page 33 To install the seat, insert the projections on the front of the seat into the seat holders and push down on the seat at the rear. NOTE: Make sure that the seat is securely fitted. EBU00112 Indicates a potential hazard that could result in serious injury or death.

  • Page 34: Pre-Operation Checks

    PRE-OPERATION CHECKS Before using this machine, check the following points: ITEM ROUTINE PAGE • Check operation, condition and free play. Brakes 5-2–5-3, 8-18–8-23 • Adjust if necessary. • Check fuel level. Fuel 5-3–5-4 • Fill with fuel if necessary. Engine oil and •...

  • Page 35: Front And Rear Brakes

    Increases the possibility of an accident or feeling when the brake is applied. If not, equipment damage. have the machine inspected by a Yamaha HOW TO AVOID THE HAZARD dealer. Always inspect your ATV each time you use it to make sure the ATV is in safe 2.

  • Page 36: Fuel

    If a problem cannot be corrected by the adjustment 1. Filler tube 2. Fuel level procedures provided in this manual, have the ATV inspected by a Yamaha dealer. Recommended fuel: UNLEADED GASOLINE ONLY Fuel tank capacity: Total: 7L (1.54 Imp gal, 1.8 US gal)
  • Page 37 WHAT CAN HAPPEN Fuel can spill, which can cause a fire and Your Yamaha engine has been designed to use severe injury. regular unleaded gasoline with a pump octane Fuel expands when it heats up. If the fuel...

  • Page 38: Engine And Transmission Oil

    EBU01116 Engine and transmission oil Make sure the engine and transmission oil is at Be sure to use motor oils that do not contain the specified level. Add oil as necessary. (See anti-friction modifiers. Passenger car motor oils page 8-5.) (often labeled “ENERGY CONSERVING ”) contain anti-friction additives which will cause...

  • Page 39: Chain

    Fittings and fasteners distilled water if refilling is necessary. (See pages Always check the tightness of chassis fittings and 8-31–8-33.) fasteners before a ride. Take the machine to a Yamaha dealer or refer to the Service Manual for correct tightening torque.

  • Page 40: Tires

    HOW TO AVOID THE HAZARD conditions. 1. The tires listed below have been The following are minimums: approved by Yamaha Motor Co., Ltd. Front 17 kPa (0.17 kgf/cm , 2.5 psi) for this model. Other tire combinations Rear 22 kPa (0.22 kgf/cm , 3.2 psi)

  • Page 41: How To Measure Tire Pressure

    Set pressure with tires cold. 4. Use no more than the following pres- Set tire pressures to the following specifications: sures when seating the tire beads. Front 250 kPa (2.5 kgf/cm , 36 psi) Recommended Minimum Maximum pressure Rear 250 kPa (2.5 kgf/cm , 36 psi) 20 kPa 17 kPa...

  • Page 42: Tire Wear Limit

    EBU00160 Tire wear limit When the tire groove decreases to 3 mm (0.12 in) due to wear, replace the tire. a. Tire wear limit...

  • Page 43: Operation

    2. Turn the fuel cock to “ON”. there is a control or function you do not 3. Turn the main switch to “ON” and the engine understand, ask your Yamaha dealer. stop switch to “RUN”. 4. Shift the drive select lever to neutral.
  • Page 44 8 When the drive select lever is in neutral, the neutral indicator light should come on. If the light does not come on, ask a Yamaha dealer to inspect it. 5. Use the starter (choke) in reference to the...

  • Page 45: Starting A Warm Engine

    NOTE: If the engine fails to start, release the start See the “Engine break-in” section prior to switch, then push the start switch again. Pause operating engine for the first time. a few seconds before the next attempt. Each cranking should be as short as possible to pre- EBU00180 serve battery energy.

  • Page 46: Drive Select Lever Operation And Reverse Driving

    EBU12250 Drive select lever operation and reverse dri- ving Before shifting, you must stop the machine and return the throttle lever to its closed position. Otherwise, the transmission may be damaged. a. Drive select lever 1. Neutral ”N” Shifting: forward 2.
  • Page 47 POTENTIAL HAZARD should be on. If the light does not come on, ask Improper operation in reverse. a Yamaha dealer to inspect the ATV. WHAT CAN HAPPEN 4. Check behind for people or obstacles, then You could hit an obstacle or person release the parking brake.

  • Page 48: Engine Break-In

    For this reason, we ask that you carefully read If any abnormality is noticed during this period, the following material. Because the engine is consult a Yamaha dealer. brand new, you must not put an excessive load on it for the first several hours of running. During 0–10 hours:...

  • Page 49: Parking

    EBU00211 10–20 hours: Parking 8 Avoid prolonged operation above 3/4 throttle. When parking, stop the engine and shift into Rev the machine freely through the gears but neutral. Turn the fuel cock to “OFF” and apply do not use full throttle at any time. the parking brake.

  • Page 50: Parking On A Slope

    EBU00215 Parking on a slope 1. Bring the machine to a stop by applying the brakes. q WARNING 2. Stop the engine. 3. With the rear brake applied, apply the park- POTENTIAL HAZARD ing brake. Parking on a hill or other incline. WHAT CAN HAPPEN The ATV could roll out of control, increas- ing the chance of an accident.

  • Page 51: Accessories And Loading

    Yamaha accessories. Other acces- than it does without accessories. sories may also be available on the market. However, it is not possible for Yamaha to test all non-Yamaha accessories, nor have any control over the quality or suitability of them.
  • Page 52 EBU00585 8 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 A shifting load can cause an accident. to carry cargo or tow a trailer. If you choose to 8 Make sure the load does not interfere with add accessories so that you can carry cargo or controls or your ability to see where you are...
  • Page 53 q WARNING POTENTIAL HAZARD Overloading this ATV or carrying or tow- ing cargo improperly. WHAT CAN HAPPEN Could cause changes in vehicle handling which could lead to an accident. HOW TO AVOID THE HAZARD Never exceed the stated load capacity for this ATV.
  • Page 54 EBU13520 Indicates a potential hazard that could result in serious injury or death. 6-12...

  • Page 55: Riding Your Atv

    Riding Your...

  • Page 57: Getting To Know Your Atv

    Indicates a potential hazard that could result in serious injury or death. this Owner’s Manual completely and understand GETTING TO KNOW YOUR ATV This ATV is for recreation and utility use. This the operation of the controls. Pay particular attention to the safety information on pages section, Riding your ATV, provides general ATV 2-1–2-7.

  • Page 58: Ride With Care And Good Judgement

    Get training if you are inexperienced. should complete the certified training Beginners should get training from a certified course offered by Yamaha. They should instructor. then regularly practice the skills learned in Become familiar with this ATV at slow speeds the course and the operating techniques first, even if you are an experienced operator.
  • Page 59 Not recommended for children under 16 years of age. q WARNING POTENTIAL HAZARD Failure to follow the age recommendations for this ATV. WHAT CAN HAPPEN Use by children of ATVs that are not rec- ommended for their age can lead to severe injury or death of the child.
  • Page 60 This ATV is designed to carry operator only - passengers prohibited. q 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 acci- dent, resulting in harm to you and/or your passenger.
  • Page 61 Apparel Operating without protective clothing q WARNING increases your chances of severe injury in the event of an accident. POTENTIAL HAZARD HOW TO AVOID THE HAZARD Operating this ATV without wearing an Always wear an approved motorcycle hel- approved motorcycle helmet, eye protec- met that fits properly.
  • Page 62 Do not operate after consuming alcohol or q WARNING drugs. POTENTIAL HAZARD Operator’s performance capability is reduced by the influence of alcohol or drugs. Operating this ATV after consuming alco- hol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could cause you to react more slowly.
  • Page 63 Pre-operation checks q WARNING Always perform the pre-operation checks listed POTENTIAL HAZARD on page 5-1 before riding for safety and proper Operating this ATV with improper tires, or care of the ATV. with improper or uneven tire pressure. WHAT CAN HAPPEN q WARNING Use of improper tires on this ATV, or oper- POTENTIAL HAZARD...
  • Page 64 Speed limiter For riders inexperienced with this model, this Indicates a potential hazard that could result model is equipped with a speed limiter in the in serious injury or death. throttle lever housing. The speed limiter limits the power and top speed of the ATV. Turning the screw in decreases top speed, and turning it Do not operate at speeds too fast for your out increases top speed.
  • Page 65 Loading and accessories q WARNING Use extra caution when riding the ATV with POTENTIAL HAZARD additional loads, such as accessories or cargo. The ATV’s handling may be adversely affected. Overloading this ATV or carrying or tow- Reduce your speed when adding additional ing cargo improperly.
  • Page 66 During operation q WARNING Always keep your feet on the footboards 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 off of the ATV.
  • Page 67 Avoid wheelies and jumping. You may lose con- trol of the ATV or overturn. q 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 68 Never modify this ATV through improper installation or use of accessories. All parts and accessories added to this vehicle should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used accord- ing to instructions. If you have questions, consult an authorized ATV dealer.
  • Page 69 Exhaust system HOW TO AVOID THE HAZARD The exhaust system on the ATV is very hot dur- Do not operate, idle, or park the ATV in dry ing and following operation. To prevent burns, grass or other dry ground cover. avoid touching the exhaust system.

  • Page 70: Be Careful Where You Ride

    BE CAREFUL WHERE YOU RIDE This ATV is designed for off-road use only. Riding on paved surfaces can cause loss of con- trol. q WARNING POTENTIAL HAZARD Operating this ATV on paved surfaces. WHAT CAN HAPPEN ATVs are designed for off-road use only. Paved surfaces may seriously affect han- dling and control of the ATV, and may cause the vehicle to go out of control.
  • Page 71 Do not ride on any public road, street, or high- way. Riding on public roads can result in collisions with other vehicles. q 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...
  • Page 72 Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden haz- ards which may cause the ATV to upset. q WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain.
  • Page 73 q 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, slip- pery or loose terrain until you have learned and practiced the skills necessary...
  • Page 74 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 ATV. DO NOT use the flag injured.
  • Page 75 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 76: Turning Your Atv

    TURNING YOUR ATV HOW TO AVOID THE HAZARD To achieve maximum traction while riding off- Always follow proper procedures for turn- road, the two rear wheels are mounted solidly ing as described in this Owner’s Manual. on one axle and turn together at the same Practice turning at low speeds before speed.
  • Page 77 Once you have learned this technique you should be able to perform it at higher speeds or Lean towards Support your inside of turn. in tighter curves. weight on the outer footboard Improper riding procedures such as abrupt throt- tle changes, excessive braking, incorrect body movements, or too much speed for the sharp- ness of the turn may cause the ATV to tip.

  • Page 78: Climbing Uphill

    CLIMBING UPHILL q WARNING Use proper riding techniques to avoid vehicle POTENTIAL HAZARD overturns on hills. Be sure that you can maneu- ver your ATV well on flat ground before attempt- Operating on excessively steep hills. ing any incline and then practice riding first on WHAT CAN HAPPEN gentle slopes.
  • Page 79 q 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...
  • Page 80 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 81 7-27 7-27...
  • Page 82 q WARNING If your ATV has stalled or stopped and you believe you can continue up the hill, restart care- POTENTIAL HAZARD fully to make sure you do not lift the front wheels Stalling, rolling backwards or improperly which could cause you to lose control. If you are dismounting while climbing a hill.
  • Page 83 When fully stopped, apply the rear brake as well, and then lock the parking brake. Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the proce- dure described in the Owner’s Manual. 7-29...

  • Page 84: Riding Downhill

    RIDING DOWNHILL q 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.
  • Page 85 7-31 7-31...

  • Page 86: Crossing A Slope

    CROSSING A SLOPE q WARNING Traversing a sloping surface on your ATV POTENTIAL HAZARD requires you to properly position your weight to maintain proper balance. Be sure that you have Improperly crossing hills or turning on learned the basic riding skills on flat ground hills.
  • Page 87 Shift your weight to the uphill side of the ATV. 7-33 7-33...

  • Page 88: 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 89 Test your brakes after leaving the water. Do not continue to ride your ATV without verifying that After riding your ATV in water, be sure to you have regained proper braking ability. drain the trapped water by removing the check hose at the bottom of the air filter case.

  • Page 90: Riding Over Rough Terrain

    RIDING OVER ROUGH TERRAIN q WARNING Riding over rough terrain should be done with POTENTIAL HAZARD caution. Look out for obstacles which could cause damage to the ATV or could lead to an Improperly operating over obstacles. upset or accident. Be sure to keep your feet WHAT CAN HAPPEN firmly mounted on the footboards at all times.
  • Page 91 7-37 7-37...

  • Page 92: Sliding And Skidding

    SLIDING AND SKIDDING If the rear wheels of your ATV start to slide side- Care should be used when riding on loose or ways, control can usually be regained (if there is slippery surfaces since the ATV may slide. If room to do so) by steering in the direction of the unexpected and uncorrected, sliding could lead slide.
  • Page 93 q WARNING With practice, over a period of time, skill at con- trolled sliding can be developed. The terrain POTENTIAL HAZARD should be chosen carefully before attempting Skidding or sliding improperly. such maneuvers, since both stability and control are reduced. Bear in mind that sliding maneu- WHAT CAN HAPPEN vers should always be avoided on extremely You may lose control of this ATV.

  • Page 94: What To Do If

    WHAT TO DO IF ... 8 If your ATV starts to slide sideways: This section is designed to be a reference guide Steer in the direction of the slide if you have only. Be sure to read each section on riding the room.
  • Page 95 8 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 96: Periodic Maintenance And Adjustment

    EBU00515 Have a Yamaha dealer perform service if PERIODIC MAINTENANCE AND you are not familiar with machine service. ADJUSTMENT Periodic inspection, adjustment and lubrication EBU12210 will keep your machine in the safest and most Owner’s manual and tool kit efficient condition possible. Safety is an obliga- You are recommended to put this owner’s man-...
  • Page 97 HOW TO AVOID THE HAZARD during a service operation requiring one, take Never modify this ATV through improper your machine to a Yamaha dealer to check the installation or use of accessories. All parts torque settings and adjust them as necessary.

  • Page 98: Periodic Maintenance/Lubrication

    EBU00261 PERIODIC MAINTENANCE/LUBRICATION INITIAL EVERY ITEM ROUTINE month months months months year • Check valve clearance. Valves* • Adjust if necessary. • Check condition. Spark plug • Adjust gap and clean. • Replace if necessary. Air filter element • Clean. Every 20 –...
  • Page 99 • Check specific gravity. Battery* • Check breather hose for correct routing. • Correct if necessary. It is recommended that these items be serviced by a Yamaha dealer. ** Lithium-soap-based grease. Indicates a potential hazard that could result in serious injury or death.

  • Page 100: Engine Oil

    EBU00896 Engine oil Engine oil level measurement 1. Place the machine on a level surface. 2. Warm up the engine for several minutes and stop it. 3. Remove the dipstick and wipe it off with a clean rag. Insert the dipstick in the filler hole without screwing it in.
  • Page 101 4. Remove the dipstick and drain bolt to drain 5. Clean the oil strainer with solvent. the oil. 6. Inspect the O-ring and replace it if damaged. 7. Install the O-ring, oil strainer, compression spring and drain bolt. Tighten the drain bolt to specification.

  • Page 102: Transmission Oil

    EBU00891 8. Fill the engine with oil and install the dipstick. Transmission oil Transmission oil measurement Recommended oil: 1. Place the machine on a level surface. See page 10-2. 2. Remove the screw and check the oil level. It Oil quantity: should be up to the brim of the hole.

  • Page 103: Transmission Oil Replacement

    3. Remove the oil filler bolt and drain bolt to drain the oil. 1. Oil filler bolt 3 Install the screw and oil filler bolt and tighten to specification. 1. Drain bolt Tightening torque: 4. Install the drain bolt and tighten to specifica- Screw: tion.

  • Page 104: Spark Plug Inspection

    0.6 L (0.53 Imp qt, 0.63 US qt) or carburetion problem for that cylinder. Do not attempt to diagnose such problems yourself. Instead, take the ATV to a Yamaha dealer. You should periodically remove and inspect the Be sure no foreign material enters the spark plug because heat and deposits will cause crankcase.
  • Page 105 Before installing the spark plug, measure the electrode gap with a wire thickness gauge and adjust it to specification. Spark plug gap: 0.6–0.7 mm (0.02–0.03 in) 1. Spark plug wrench Tightening torque: Spark plug: 12.5 Nm (1.25 m0kgf, 9.1 ft0lbf) a.
  • Page 106 EBU01142 1. Remove the seat. Engine and V-belt case air filter element 2. Remove the breather hose, and then loosen cleaning Both air filter elements should be cleaned at the the clamp screw. 3. Remove the air filter case cover. specified intervals in the periodic maintenance chart.
  • Page 107 q WARNING 4. Remove the air filter element, and separate it from the frame. POTENTIAL HAZARD Using low flash point solvents or gasoline to clean the air filter element. WHAT CAN HAPPEN Low flash point solvents or gasoline can catch fire or explode. HOW TO AVOID THE HAZARD Use parts cleaning solvent to clean the air filter element.
  • Page 108 7. Inspect the air filter element. If damaged, replace it. Install the washer with the bent edge facing 8. Apply Yamaha foam air filter oil or other upward as shown. quality foam air filter oil to the air filter ele- ment.
  • Page 109 V-belt case air filter element NOTE: 1. Remove the front cover by removing the The air filter element should be cleaned every screws and bolts. 20 – 40 hours. It should be cleaned and lubricat- ed more often if the machine is operated in extremely dusty areas.

  • Page 110: Idle Speed Adjustment

    EBU13020 2. Remove the air filter element cover. Idle speed adjustment 3. Pull out the air filter element. NOTE: A diagnostic tachometer must be used for this procedure. 1. Start the engine and warm it up for a few minutes at approximately 1,000 to 2,000 r/min.

  • Page 111: Valve Clearance Adjustment

    To prevent this, the valve clearance must increase the engine speed, and in direction be adjusted regularly. This adjustment however, b to decrease the engine speed. should be left to a professional Yamaha service technician. Specified idle speed: 1,650–1,750 r/min 1.

  • Page 112: Throttle Lever Adjustment

    EBU00307 Throttle lever adjustment NOTE: Adjust the engine idling speed before adjusting the throttle lever free play. 1. Loosen the locknut. 2. Turn the adjusting bolt until the throttle lever free play is 3–5 mm (0.12–0.20 in). 3. Tighten the locknut. 1.

  • Page 113: Front And Rear Brake Shoe Inspection

    Apply the brake and check the position of the indicator. If the indicator reaches the wear limit line, ask a Yamaha dealer to replace the shoes as a set. Front 1. Wear limit line 2. Wear indicator 1.

  • Page 114: Front Brake Lever Free Play Adjustment

    EBU11492 1. Remove the front cover by removing the Front brake lever free play adjustment screws and bolts. (See page 8-14 for NOTE: removal and installation procedures.) Before adjusting the brake lever free play, 2. Remove the V-belt air filter element cover. inspect the front brake shoes.
  • Page 115 4. Loosen the locknut and fully turn in the adjusting bolt at the front brake lever. 1. Front fender 2. Bolt (× 2) 3. Screw (× 6) 1. Locknut 2. Adjusting bolt 8-20...
  • Page 116 5. Make sure the brake cable joint in the equal- izer is straight when the brake is applied. If not, loosen the locknut, and then turn the adjusting nuts at the front brake cables until the cable joint becomes straight. a´...
  • Page 117 8 Make sure the brakes do not drag. Replacement of brake components Specified free play: requires professional knowledge. These 5–8 mm (0.2–0.3 in) procedures should be performed by a Yamaha dealer. 8. Tighten the locknut at the brake lever. 9. Install by reversing the removal procedure. 8-22...

  • Page 118: Rear Brake Adjustment

    EBU00965 Rear brake adjustment Turn the adjusting nut on the brake hub in direc- tion a to decrease play, and in direction b to Brake lever free play should be 5–8 mm (0.2–0.3 in) at the brake lever pivot. increase play. If the free play is incorrect, adjust as follows: 1.

  • Page 119: Drive Chain Slack Check

    30 mm (1.18 in), adjust it to specification. and that the free play is correct. 8 Make sure the brakes do not drag. Replacement of brake components requires professional knowledge. These procedures should be performed by a Yamaha dealer. a. Drive chain slack 8-24...

  • Page 120: Drive Chain Slack Adjustment

    EBU01146 Drive chain slack adjustment 3. Loosen the locknut. To tighten the drive chain, turn the adjusting bolt in direction a. 1. Loosen the hub stopper bolt locknut and then the hub stopper bolt. To loosen the drive chain, turn the adjusting bolt in direction b, and then push the wheels forward.
  • Page 121 If measurement A A of the drive chain adjust- ing bolt is less than 27 mm (1.06 in), ask a Yamaha dealer to replace the drive chain. Tightening torque: Locknut: 15.5 Nm (1.55 m0kgf, 11.2 ft0lbf) Axle holding bolts (upper): 85 Nm (8.5 m0kgf, 61 ft0lbf)

  • Page 122: Lubricating The Drive Chain

    EBU00805 2. Wipe the drive chain dry. Lubricating the drive chain 3. Thoroughly lubricate the drive chain with a The drive chain must be cleaned and lubricated special O-ring chain lubricant. at the intervals specified in the periodic mainte- nance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas.

  • Page 123: Draining The V-Belt Compartment

    Damaged control cables. the V-belt becomes dry. If slipping is noticed, WHAT CAN HAPPEN ask a Yamaha dealer to inspect. Corrosion can result when the outer cov- ering of control cables becomes damaged. Cables can also become frayed or kinked.

  • Page 124: Brake Lever Lubrication

    EBU00725 EBU00728 Brake lever lubrication Knuckle shaft, lower arms and steering shaft Lubricate the pivoting parts of the brake levers. lubrication Lubricate the pivot points using a grease gun. Recommended lubricant: Recommended lubricant: Lithium-soap-based grease Lithium-soap-based grease (all-purpose grease) 1. Grease nipple (×6) 8-29...

  • Page 125: Wheel Removal

    EBU01112 Wheel removal 2. Lower the ATV to the ground. 1. Loosen the wheel nuts. 3. Tighten the wheel nuts to the specified 2. Elevate the ATV and place a suitable stand torque. under the frame. 3. Remove the nuts from the wheel. 4.

  • Page 126: Battery

    EBU00378 Battery Check the level of the battery fluid and see if the terminals are tight. Add distilled water if the fluid level is low. Do not leave or store the battery on its side. When inspecting the battery, be sure the breather hose is routed correctly.
  • Page 127 q WARNING EYES: Flush with water for 15 minutes and get prompt medical attention. Keep batter- POTENTIAL HAZARD ies away from sparks, flames, cigarettes Failure to handle batteries or battery elec- or other sources of ignition. Ventilate trolyte carefully. when charging or using in a closed space. WHAT CAN HAPPEN You could be poisoned.

  • Page 128: Replenishing The Battery Fluid

    EBU11950 Replenishing the battery fluid A poorly maintained battery will corrode and dis- Normal tap water contains minerals which charge quickly. The battery fluid should be are harmful to a battery. Therefore, refill only checked at least once a month. with distilled water.

  • Page 129: Fuse Replacement

    Then turn on the switches, if the Using an improper fuse. fuse immediately blows again, consult a WHAT CAN HAPPEN Yamaha dealer. An improper fuse can cause damage to the electrical system which could lead to a fire. HOW TO AVOID THE HAZARD Always use a fuse of the specified rating.

  • Page 130: Replacing The Headlight Bulb

    EBU01151 Replacing the headlight bulb 2. Remove the headlight bulb holder cover, If the headlight bulb burns out, replace the bulb turn the bulb holder counterclockwise and as follows. remove the defective bulb. 1. Remove the screws holding the headlight unit assembly to the headlight body.
  • Page 131 5. Install the headlight unit assembly by q WARNING installing the screws. POTENTIAL HAZARD 6. Adjust the headlight beam if necessary. The headlight bulb is hot when it is on and immediately after it is turned off. WHAT CAN HAPPEN You can be burned, or a fire could start if the bulb touches something flammable.

  • Page 132: Tail/Brake Light Bulb Replacement

    EBU00861 Tail/brake light bulb replacement 3. Install a new bulb in the bulb holder by push- 1. Remove the bulb holder (together with the ing it inward and turning it clockwise. bulb) by turning it counterclockwise. 1. Bulb 2. Bulb holder 1.

  • Page 133: Headlight Beam Adjustment

    Headlight beam adjustment Spark arrester cleaning Be sure the exhaust pipe and muffler are cool before cleaning the spark arrester. It is advisable to have a Yamaha dealer make 1. Remove the screws. this adjustment. Vertical adjustment: To raise the beam, loosen the adjusting screw and pull the headlight assembly toward you.
  • Page 134 2. Remove the tailpipe by pulling it out of the q WARNING muffler. POTENTIAL HAZARD 3. Tap the tailpipe lightly, then use a wire brush to remove any carbon deposits from Improper cleaning of the spark arrester. the spark arrester portion of the tailpipe. Hot exhaust system WHAT CAN HAPPEN Could injure the eyes.

  • Page 135: Troubleshooting

    Fuel can ignite or explode, causing severe procedure for making checks. If your machine injury or property damage. requires any repair, take it to a Yamaha dealer. HOW TO AVOID THE HAZARD Do not smoke when checking the fuel sys- The skilled technicians at a Yamaha dealership tem.

  • Page 136: Troubleshooting Chart

    2. Compression Use electric starter There is compresson. Compression normal. to see if there is compression. No compression. Ask a Yamaha dealer to inspect. Wipe clean with dry 3. Ignition cloth. Remove plug and Spark good. Ignition system normal. check electrodes.

  • Page 137: Cleaning And Storage

    EBU00417 CLEANING AND STORAGE Excessive water pressure may cause water A. CLEANING seepage and deterioration of wheel bearings, Frequent, thorough cleaning of your machine brakes, transmission seals and electrical will not only enhance its appearance but will devices. Many expensive repair bills have improve its general performance and extend the resulted from improper high pressure deter- useful life of many components.
  • Page 138 q WARNING 7. Clean the seat with a vinyl upholstery clean- er to keep the cover pliable and glossy. POTENTIAL HAZARD 8. Automotive type wax may be applied to all Operation with wet brakes after washing. painted and chrome plated surfaces. Avoid combination cleaner-waxes.

  • Page 139: Storage

    Consult a Do not store the battery in an excessively Yamaha dealer if the fuel system needs to be warm or cold place (less than 0°C (30°F) or drained instead.

  • Page 140: Specifications

    EBU00428 SPECIFICATIONS Model YFA1 Dimension: Overall length 1,640 mm (64.6 in) Overall width 965 mm (38.0 in) Overall height 980 mm (38.6 in) Seat height 690 mm (27.2 in) Wheel base 1,080 mm (42.5 in) Minimum ground clearance 145 mm ( 5.7 in) Minimum turning radius 2,900 mm (114.2 in) Basic weight:...
  • Page 141 Model YFA1 Engine oil/transmission oil: 0° 10° 30° 50° 70° 90° 110° 130°F Type YAMALUBE 4 (20W40) or SAE20W40 YAMALUBE 4 (10W30) or SAE10W30 SAE 5W30 –20° –10° 0° 10° 20° 30° 40° 50°C Recommended engine oil/transmission API Service SE, SF, SG type or higher oil classification: Be sure to use motor oils that do not contain anti-friction modifiers.
  • Page 142 Model YFA1 Air filter: for engine Wet type element for V-belt compartment Dry type element Fuel: Type UNLEADED GASOLINE ONLY Tank capacity 7.0 L (1.54 Imp gal, 1.8 US gal) Reserve amount 1.3 L (0.29 Imp gal, 0.34 US gal) Carburetor: Type/manufacturer VM18SH/MIKUNI...
  • Page 143 Model YFA1 Chassis: Frame type Steel tube Caster angle 6° Trail 15 mm (0.59 in) Tire: Type Tubeless AT20 × 7 - 8 Size: Front AT22 × 10 - 8 Rear Manufacturer/type: Front DUNLOP/KT536A Rear DUNLOP/KT537A Brake: Front brake type Drum brake Operation Right hand operation...
  • Page 144 Model YFA1 Wheel travel: Front 70 mm (2.8 in) Rear 80 mm (3.2 in) Electrical: Ignition system C.D.I. Charging system A.C. Magneto Battery type/voltage, capacity 12N12C-4A-2/12V, 12Ah Headlight type: Bulb Bulb voltage, wattage × quantity: 12V, 25 W/25 W × 1 Headlight 12V, 5 W/21W ×...

  • Page 145: Noise Regulation

    EBU13640 NOISE REGULATION TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inopera- tive 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 146: Maintenance Record

    EBU13651 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. DATE MAINTENACE SERVICING DEALER...
  • Page 147 12-2...
  • Page 148 EBU00432 13-1...
  • Page 149 13-2...
  • Page 150 EBU00435 14-1...
  • Page 151 14-2...
  • Page 152 EBU00436 Indicates a potential hazard that could result in serious injury or death.
  • Page 153 EBU00437 PROTECT YOUR INVESTMENT...
  • Page 154 9 with a passenger - passengers affect balance and steering and increase risk of losing control. LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS. (For replacement manual, call 1-800-532-1558) YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2003.3—1.0×1 !

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