Page 1 READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM70RSBL YFM70RSCL YFM70RSSL WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-33-13 BCX-F8199-10...
Page 2 EBU37021 Operating, servicing and maintaining a passenger vehicle or off-road 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. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your...
Page 3 Congratulations on your purchase of the Yamaha YFM70RSBL / YFM70RSCL / YFM70RSSL. This ATV represents the result of many years of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields.
Page 4 EBU17331 IMPORTANT MANUAL INFORMATION EBU17344 FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS IN- JURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential per- sonal injury hazards.
Page 5 Please check your local riding laws and regulations before operating this ATV. EBU17403 YFM70RSBL / YFM70RSCL / YFM70RSSL OWNER’S MANUAL ©2020 by Yamaha Motor Corporation, U.S.A. 1st edition, March 2019 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A.
Page 6: Table Of Contents
Self-diagnosis device ......... 5-3 EWB00012 WARNING Handlebar switches ........5-3 Throttle lever..........5-4 Indicates a hazardous situation which, if not Speed limiter..........5-5 avoided, could result in death or serious injury. Clutch lever..........5-5 Brake lever..........5-6 Brake pedal ..........5-7 EBU17421 Parking brake lever........
Page 7 Tires ............6-5 WHAT TO DO IF........8-23 Chassis fasteners........6-7 Instruments, lights and switches ....6-7 PERIODIC MAINTENANCE AND ADJUSTMENT ..........9-1 OPERATION ........... 7-1 Owner’s Manual and tool kit....... 9-2 Starting the engine........7-1 Periodic maintenance chart: Emission Shifting ............
Page 8 U.S.A. 2020 AND LATER MODEL ATV Lubricating the rear suspension relay arm LIMITED WARRANTY ......12-4 and connecting arm pivoting points ..9-44 YAMAHA EXTENDED SERVICE (Y.E.S.)... 12-6 Lubricating the upper and lower arm pivots ............9-45 INDEX ............13-1 Lubricating the steering shaft ....9-46 Battery............9-46...
Page 9: Vehicle Identification
EBU38860 VEHICLE IDENTIFICATION EBU26016 EBU26032 Vehicle identification number Identification numbers The vehicle identification number is stamped into Record the vehicle identification number, model the frame. This 17-digit number is used to identify label information and key identification number in your individual ATV. the spaces provided below.
Page 10 EBU26021 Key identification number The key identification number is stamped into the key. Record this number in the space provided and use it for reference when ordering a new key. 1. Model label Your specific model can be identified by checking the model type code found on the model label.
Page 11: Location Of The Warning And Specification Labels
EBU17661 LOCATION OF THE WARNING AND SPECIFICATION LABELS...
Page 12 Certification of Compliance WARNING This ATV complies with applicable provisions of ANSI/SVIA1-2017 and is subject to an approved ATV action plan submitted by YAMAHA and on file with the U.S. Consumer Product Safety Commission. YAMAHA MOTOR CORPORATION U.S.A. UNDER 6555 Katella Avenue, Cypress, California 90630-5101, U.S.A.
Page 13 WARNING NEVER ride as a passenger. Passengers can cause a loss of control, resulting in SEVERE INJURY or DEATH. YAMAHA 3C2-F151H-00 4XE-F1568-00...
Page 14 WARNING WARNING Improper tire pressure or overloading can cause This unit contains high pressure nitrogen gas. loss of control. Mishandling can cause explosion. Loss of control can result in severe injury or • Read owner’s manual for instructions. death. • Do not incinerate, puncture or open. OPERATING TIRE PRESSURE : Set with tires cold •...
Page 15: Safety Information
EBU17432 SAFETY INFORMATION SAFETY INFORMATION  Never allow a child under age 16 to operate an EBU26667 ATV without adult supervision, and never allow AN ATV IS NOT A TOY AND CAN BE HAZARD- continued use of an ATV by a child if he or she OUS TO OPERATE.
Page 16  Always inspect your ATV each time you use it to  Always follow proper procedures for climbing make sure it is in safe operating condition. Al- hills as described in this manual. Check the ter- ways follow the inspection and maintenance rain carefully before you start up any hill.
Page 17  Always use proper procedures if you stall or roll reduced stopping ability. Test your brakes after backwards when climbing a hill. To avoid stall- leaving water. If necessary, apply them several ing, use the proper gear and maintain a steady times to let friction dry out the linings.
Page 18 In the event of an accident tention. If necessary, contact your riding party 1. If serious injuries are incurred, you may be or local authorities to let them know where safer staying next to your vehicle; it may you are and what has happened. shield you from oncoming riders.
Page 19 This im- While you may find aftermarket products similar in proper position limits the freedom of movement design and quality to genuine Yamaha accesso- of the operator and may limit control ability, ries, recognize that some aftermarket accessories...
Page 20  Do not run engine outdoors where engine EWB00073 WARNING exhaust can be drawn into a building through openings such as windows and doors. Avoid Carbon Monoxide Poisoning All engine exhaust contains carbon monoxide, FOR MORE INFORMATION ABOUT ATV SAFE- a deadly gas.
Page 21: Description
EBU17681 DESCRIPTION EBU17691 EBU17701 Left view Right view 3 4 5 6 7 10 9 1. Engine oil tank 1. Muffler 2. Coolant reservoir 2. Spark arrester 3. Fuel tank cap 3. Air filter 4. Idle adjusting screw 4. Rear brake fluid reservoir 5.
Page 22: Controls And Instruments
EBU17715 Controls and instruments 1. Clutch lever 2. Parking brake lever 3. Main switch 4. Front brake fluid reservoir 5. Brake lever 6. Throttle lever 7. Reverse knob 8. Handlebar switches...
Page 23: Instrument And Control Functions
EBU1772C INSTRUMENT AND CONTROL FUNCTIONS “ ” (off) EWB00012 WARNING All electrical systems are off. The key can be re- moved. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. EBU26699 Indicator lights and warning lights EBU29913 Main switch 1.
Page 24 “ ” (on), or if the warning checked by setting the engine stop switch to “ ” light remains on, have a Yamaha dealer check the and turning the key to “ ” (on). The warning light vehicle.
Page 25: Self-Diagnosis Device
” To prevent engine damage, be sure to consult This warning light comes on or flashes when an a Yamaha dealer as soon as possible if this oc- electrical circuit monitoring the engine is not work- curs. ing correctly. When this occurs, have a Yamaha dealer check the self-diagnosis system.
Page 26: Throttle Lever
starter will not have enough power to crank the EBU18081 Engine stop switch “ ” engine. If this should happen, remove the bat- Set this switch to “ ” before starting the engine. tery and recharge it. (See page 9-46.) The engine stop switch controls the ignition and stops the engine when it is running.
Page 27: Speed Limiter
the adjusting screw in direction (b). Do not EBU18325 Speed limiter turn the adjusting screw out more than 12 mm (0.47 in) or the throttle cable could be damaged. Always make sure the throttle lever free play is adjusted to 2.0–4.0 mm (0.08– 0.16 in).
Page 28: Brake Lever
The clutch lever is located on the left side of the YFM70RSCL / YFM70RSSL handlebar. To disengage the clutch, pull the clutch lever toward the handlebar grip. To engage the clutch, release the lever. The lever should be pulled rapidly and released slowly for smooth clutch operation.
Page 29: Brake Pedal
EBU18434 Brake pedal 1. Parking brake lever (locked position) 1. Brake pedal The brake pedal is located on the right side of the ATV. To apply the rear brake, push down on the brake pedal. EBU18521 Parking brake lever Use the parking brake before starting the engine or parking the ATV, especially on a slope.
Page 30: Shift Pedal
EWB00221 EBU18542 Shift pedal WARNING  Always set the parking brake before starting the engine. The ATV could start moving un- expectedly if the parking brake is not ap- plied. This could cause loss of control or a collision.  Always be sure you have released the park- ing brake before you begin to ride.
Page 31: Reverse Knob "Rev
EBU18643 EBU37980 Reverse knob “REV” Fuel tank cap 1. Reverse knob “REV” 1. Fuel tank cap The reverse knob is used when shifting into re- Remove the fuel tank cap by turning it counter- verse. (See page 7-4.) clockwise. EWB02522 WARNING Gasoline and gasoline vapors are extremely flammable.
Page 32: Fuel
of sparks, open flames, or other sources of 3. Wipe up any spilled fuel immediately. NOTICE: Immediately wipe off spilled fuel ignition such as the pilot lights of water heat- ers and clothes dryers. with a clean, dry, soft cloth, since fuel may 2.
Page 33: Seat
ECB00071 Recommended fuel: NOTICE Regular unleaded gasoline only Use only unleaded gasoline. The use of leaded Fuel tank capacity: gasoline will cause severe damage to internal 11 L (2.9 US gal, 2.4 Imp.gal) engine parts, such as the valves and piston Fuel reserve amount: rings, as well as to the exhaust system.
Page 34: Front Shock Absorbers (Yfm70Rsbl)
To install the seat EWB00401 WARNING Always adjust the shock absorber assemblies on the left and right side to the same setting. Uneven adjustment can cause poor handling and loss of stability, which could lead to an ac- cident. Adjust the spring preload as follows. Turn the spring preload adjusting ring in direction (a) to increase the spring preload and thereby harden the suspension, and in direction (b) to de-...
Page 35 1. Spring preload adjusting ring 1. Special wrench 2. Position indicator Spring preload setting: Minimum (soft): A special wrench can be obtained at a Yamaha dealer to make this adjustment. Standard: Maximum (hard): 5-13...
Page 36: Front Shock Absorbers (Yfm70Rscl / Yfm70Rssl)
Uneven adjustment can cause poor er for any service. handling and loss of stability, which could lead to an accident. Notes on adjusting the suspension  A special wrench can be obtained at a Yamaha dealer to make the spring preload adjustment. 5-14...
Page 37  When adjusting the damping force settings, turn the adjuster in direction (a) until it stops, and then count the turns or clicks in direction (b).  Although a damping force adjuster may turn or click beyond the stated minimum settings, such adjustments are ineffective and may damage the suspension.
Page 38 Spring preload setting: Tightening torque: Minimum (soft): Locknut: Distance A = 268.0 mm (10.55 in) 42 N·m (4.2 kgf·m, 31 lb·ft) Standard: Distance A = 262.0 mm (10.31 in) Rebound damping force Maximum (hard): Turn the rebound damping force adjusting screw Distance A = 253.0 mm (9.96 in) in direction (a) to increase the rebound damping force.
Page 39 Rebound damping force settings: Minimum (soft): 30 click(s) in direction (b) Standard: 18 click(s) in direction (b) Maximum (hard): 1 click(s) in direction (b) Compression damping force Fast compression damping force 1. Fast compression damping force adjusting bolt Turn the fast compression damping force adjust- ing bolt in direction (a) to increase the fast com- Fast compression damping force settings: pression damping force.
Page 40: Rear Shock Absorber (Yfm70Rsbl)
 Do not dispose of a damaged or worn out shock absorber assembly yourself. Take the 1. Slow compression damping force adjusting screw shock absorber assembly to a Yamaha deal- Slow compression damping force settings: er for any service. Minimum (soft):...
Page 41 ECB01091 NOTICE  A special wrench can be obtained at a Yamaha Never turn the adjusting mechanism beyond dealer to make this adjustment. the minimum and maximum settings.  The spring preload setting is determined by measuring distance A, shown in the illustration.
Page 42: Rear Shock Absorber (Yfm70Rscl / Yfm70Rssl)
 Do not deform or damage the cylinder in any way.  Do not dispose of a damaged or worn out shock absorber assembly yourself. Take the shock absorber assembly to a Yamaha deal- 1. Distance A er for any service. 3. Tighten the locknut to the specified torque.
Page 43 Notes on adjusting the suspension  A special wrench can be obtained at a Yamaha dealer to make the spring preload adjustment.  When adjusting the damping force settings, turn the adjuster in direction (a) until it stops, and then count the turns or clicks in direction (b).
Page 44  Each complete turn of the adjusting nut chang- 3. Tighten the locknut to the specified torque. NOTICE: Always tighten the locknut es distance A by 1.5 mm (0.06 in). against the adjusting nut, and then tighten it to the specified torque. [ECB00082] Spring preload setting: Minimum (soft):...
Page 45 Rebound damping force settings: Fast compression damping force settings: Minimum (soft): Minimum (soft): 30 click(s) in direction (b) 2 turn(s) out from the fully turned in posi- Standard: tion 18 click(s) in direction (b) Standard: Maximum (hard): 1.25 turn(s) out from the fully turned in 1 click(s) in direction (b) position Maximum (hard):...
Page 46  Do not dispose of a damaged or worn out Slow compression damping force settings: shock absorber assembly yourself. Take the Minimum (soft): shock absorber assembly to a Yamaha deal- 18 click(s) in direction (b) er for any service. Standard:...
Page 47: Pre-Operation Checks
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. Before using this vehicle, check the following points:...
Page 48 ITEM ROUTINE PAGE • Check operation. If soft or spongy, have Yamaha dealer bleed hy- draulic system. • Check brake pads for wear, and replace if necessary. Front brake 6-4, 9-30, 9-31, 9-34 • Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
Page 49 ITEM ROUTINE PAGE • Make sure that operation is smooth. Lubricate lever pivoting points Brake and clutch levers 9-42 if necessary. Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened. Instruments, lights and • Check operation, and correct if necessary. switches...
Page 50: Fuel
Yamaha dealer check the brake sys- EBU19713 Front and rear brakes tem. Brake lever and brake pedal  Check that there is no free play in the brake le- ver. If there is free play, have a Yamaha dealer check the brake system.
Page 51: Throttle Lever
Check the operation of the throttle lever. It must also cause the tire to dislodge from the rim un- open smoothly and spring back to the idle position der severe riding conditions. [EWB02542] when released. Have a Yamaha dealer correct if necessary. Recommended tire pressure: Front EBU19771 27.5 kPa (0.275 kgf/cm², 4.0 psi)
Page 52 After extensive tests, only the tires list- equipment with your vehicle. (See page 9-2.) ed below are approved for this model by Yamaha. When using the tire pressure gauge, make two measurements and use the second reading as grit in the gauge or tire valve could have caused the first reading to be incorrect.
Page 53: Chassis Fasteners
EBU19841 Front: Chassis fasteners Manufacturer/model: Make sure that all nuts, bolts and screws are MAXXIS/MS13 properly tightened. Size: AT22 x 7-10 EBU19851 Instruments, lights and switches Rear: Manufacturer/model: Check that all instruments, lights and switches are MAXXIS/M976Y working properly. Correct if necessary. Size: AT20 x 10-9 Aftermarket tires and rims...
Page 54: Operation
3. Shift the transmission into neutral. The neutral accident or injury. indicator light should come on, if it does not come on, have a Yamaha dealer check the electrical circuit. EBU29954 Starting the engine...
Page 55: Shifting
 The clutch is disengaged with the transmission To shift into neutral, release the throttle lever, ap- in gear. However, it is recommended to shift ply the clutch, and then repeatedly depress the into neutral before starting the engine. shift pedal until it stops. When it stops, it will be in first gear.
Page 56 3. Shift into first gear, and then release the EBU20653 To decelerate brake. NOTICE: Always close the throttle When slowing down or stopping, release the before shifting gears, otherwise damage throttle and apply the brakes smoothly and evenly. to the engine and drive train may result. As you slow down, shift to a lower gear.
Page 57: Operating The Reverse Knob And Driving In Reverse
erly lubricated only when the engine is run- 1. Bring the ATV to a complete stop, apply the ning. Inadequate lubrication may damage clutch lever, and then shift the transmission the transmission. into first gear.  Always use the clutch when changing gears. 2.
Page 58: Engine Break-In
If the indicator light does not come on, ate it at one set throttle position. have a Yamaha dealer check the electrical circuit. 160–320 km (100–200 mi) or 10–20 hours 4. Check behind you for people or obstacles, Avoid prolonged operation above 3/4 throttle.
Page 59: Parking On A Slope
EBU20922 Genuine Yamaha Accessories ing brake, and then block the front and rear Choosing accessories for your ATV is an impor- wheels with rocks or other objects. tant decision. Genuine Yamaha Accessories, which are available only from a Yamaha dealer,...
Page 60  Accessories should be rigidly and securely and accessories or offer other modifications for Yamaha vehicles. Yamaha is not in a position to mounted. An accessory which can shift position test the products that these aftermarket compa- or come off while you are riding could affect nies produce.
Page 61  Tie down cargo securely to the carriers. Make curely attached. Reduce speed when carrying cargo or pulling a trailer. Allow greater dis- sure cargo in the trailer cannot move around. A tance for braking. shifting load can cause an accident. ...
Page 62: Riding Your Atv
EBU21133 RIDING YOUR ATV...
Page 63: Getting To Know Your Atv
Before you begin to ride, be Yamaha. They should then regularly practice the sure you have read this Owner’s Manual com- skills learned in the course and the operating tech- pletely and understand the operation of the con- niques described in this Owner’s Manual.
Page 64 more information about the training course, con- tact an authorized ATV dealer or call 1-800-887- 2887. Riding your ATV requires skills acquired through practice over a period of time. Do not attempt to operate at maximum perfor- mance until you are totally familiar with the ATV’s handling and performance characteristics.
Page 65 proved motorcycle helmet increases your chances of a severe head injury or death in the event of an accident. [EWB01412] Apparel Always wear the following to reduce risk of injury in an accident:  Approved motorcycle helmet that fits properly ...
Page 66 Wear eye protection when operating your ATV to Do not operate after or while consuming alco- reduce the risk of a serious accident or injury. Eye hol or drugs. protection, such as a face shield or goggles, may The operator’s performance capability is reduced reduce the risk of foreign material getting in your by the influence of alcohol or drugs.
Page 67 nance procedures and schedules described in the Owner’s Manual. WARNING! Failure to inspect the ATV before riding it or failure to maintain it properly increases the possibility of an acci- dent and equipment damage. [EWB01433] Speed limiter For riders less experienced with this model, the throttle lever housing is equipped with a speed limiter.
Page 68 Loading and accessories MAXIMUM LOADING LIMIT EWB00973 ATV loading limit (total weight of cargo, rid- WARNING er, accessories, and tongue): Improper loading or towing can increase the 100.0 kg (220 lb) risk of loss of control, an overturn, or other ac- cident.
Page 69 ATV should creases the chance of an accident, including be genuine Yamaha or equivalent components an overturn. Never attempt stunts, such as designed for use on this ATV and should be in- wheelies or jumps.
Page 70 Exhaust system To prevent burns, avoid touching the exhaust sys- tem. Park the ATV in a place where pedestrians or EWB01502 WARNING children are not likely to touch it.  Dry grass or brush or other combustible ma- terial accumulated around the engine area could catch fire.
Page 71: Be Careful Where You Ride
BE CAREFUL WHERE YOU RIDE ate ATVs on public streets, roads and highways. This ATV is designed for off-road use only. WARNING! Never operate this ATV on any pu- WARNING! Paved surfaces may seriously af- blic street, road or highway, even a dirt or grav- fect handling and control of the ATV, and may el one.
Page 72 Know the terrain where you ride. Ride cautiously in Do not operate on rough, slippery, or loose terrain unfamiliar areas. Stay alert for holes, rocks, or until you have learned and practiced the skills nec- roots in the terrain, and other hidden hazards essary to control the ATV on such terrain.
Page 73 as a trailer hitch. WARNING! You could collide with another vehicle if operating in off-road ar- eas where you cannot easily be seen. Mount a caution flag on the ATV to make you more vis- ible. Watch carefully for other vehicles. [EWB01062] Select a large, flat area off-road to become familiar with your ATV.
Page 74: Turning Your Atv
and at the same time, quickly pull in the clutch le- TURNING YOUR ATV ver and shift into 2nd gear. Open the throttle part EWB01772 WARNING way and gradually release the clutch. WARNING! If the throttle is applied too abruptly or if the Always follow proper procedures for turning as throttle is not released during shifting, or if the described in this Owner’s Manual.
Page 75 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 throt- tle changes, excessive braking, incorrect body movements, or too much speed for the sharpness of the turn may cause the ATV to tip.
Page 76: Climbing Uphill
 Avoid crossing the side of a steep hill if pos- CLIMBING UPHILL sible. When crossing the side of a hill, shift EWB01592 WARNING your weight to the uphill side of the ATV. Climbing hills improperly can cause overturns or loss of control. Use proper riding techniques described in this Owner’s Manual.
Page 77 It is important when climbing a hill to make sure that your weight is transferred forward on the ATV. This can be accomplished by leaning forward and, on steeper inclines, standing on the footrests and leaning forward over the handlebars. Whenever possible, ride straight up hills.
Page 78: Riding Downhill
If you start to roll backwards, DO NOT apply the rear brake, and apply the front brake gradually. The ATV could easily tip over backwards. When fully stopped, apply the rear brake as well, and then lock the parking brake. Dismount the ATV im- mediately on the uphill side or to a side if pointed straight uphill.
Page 79  Never operate the ATV on hills too steep for Whenever possible, ride your ATV straight down- the ATV or for your abilities. The ATV can hill. Avoid sharp angles which could allow the ATV overturn more easily on extremely steep hills to tip or roll over.
Page 80: Crossing A Slope
CROSSING A SLOPE As you travel across a slope, lean your body in the uphill direction. It may be necessary to correct the EWB01633 WARNING steering when riding on loose surfaces by pointing the front wheels slightly uphill. When riding on Improperly crossing hills or turning on hills could cause loss of control or cause the ATV to slopes, be sure not to make sharp turns either up...
Page 81: Crossing Through Shallow Water
CROSSING THROUGH SHALLOW WATER EWB01642 WARNING Operating this vehicle through deep or fast- flowing water can lead to loss of control or an overturn. To reduce your risk of drowning or other injuries, use care when crossing through water. Never operate this ATV water deeper than the depth specified in your Owner’s Man- ual, as tires may float, increasing the risk of an overturn.
Page 82: Riding Over Rough Terrain
Test your brakes after leaving the water. If neces- Wash the ATV in fresh water if it has been operat- sary, apply them several times to let friction dry ed in salt water or muddy conditions. out the linings. Do not continue to ride your ATV without verifying that you have regained proper braking ability.
Page 83: Sliding And Skidding
Riding over rough terrain should be done with To reduce the tendency for the front wheels to caution. Look out for obstacles which could cause slide in loose or slippery conditions, positioning damage to the ATV or could lead to an upset or your weight over the front wheels will sometimes accident.
Page 84: What To Do If
WHAT TO DO...  If your ATV doesn’t turn when you want it to: Bring the ATV to a stop and practice the turning maneuvers again. Be sure you are putting your weight on the footrest to the outside of the turn. Position your weight over the front wheels for better control.
Page 85  If your ATV is traversing a sloping surface: Be sure to ride with your weight positioned to- wards 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 86: Periodic Maintenance And Adjustment
The intervals given in the periodic maintenance vice or while using the vehicle. If you are not fa- charts should be considered as a general guide miliar with vehicle service, have a Yamaha under normal riding conditions. However, DE- dealer perform the service.
Page 87: Owner's Manual And Tool Kit
If you do not have the tools or experience required Be sure to put the Owner’s Manual in the plastic for a particular job, have a Yamaha dealer perform bag and to always carry it as well as the tool kit it for you.
Page 88: Periodic Maintenance Chart: Emission Control System
 For odometer or hour meter-equipped vehicles, follow the month maintenance interval if the ATV isn’t ridden for the stated mileage or engine operating hours.  Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
Page 89 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (200) (800) (1600) (1600) (3200) hours • Check for leakage and replace gasket(s) if neces- sary. √ √ √ Exhaust system • Check for looseness and tighten all screw clamps and joints if necessary.
Page 90: Periodic Maintenance Chart: General Maintenance And Lubrication
 For odometer or hour meter-equipped vehicles, follow the month maintenance interval if the ATV isn’t ridden for the stated mileage or engine operating hours.  Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
Page 91 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (200) (800) (1600) (1600) (3200) hours • Check for cracks or other damage, and replace if √ √ √ √ necessary. Brake hoses •...
Page 92 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (200) (800) (1600) (1600) (3200) hours √ √ √ Drive chain roller • Check for wear and replace if necessary. • Make sure that all nuts, bolts, and screws are √...
Page 93 INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (200) (800) (1600) (1600) (3200) hours • Check coolant level and ATV for coolant leakage, √ √ √ √ √ and correct if necessary. Cooling system •...
Page 94  Hydraulic brake service • Regularly check and, if necessary, correct the brake fluid level. • Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid. • Replace the brake hoses every four years and if cracked or damaged.
Page 95: Removing And Installing The Panel
EWB00012 EBU23102 Panel A WARNING Indicates a hazardous situation which, if not To remove the panel avoided, could result in death or serious injury. Remove the bolts, and then take the panel off. EBU23081 Removing and installing the panel The panel shown needs to be removed to perform some of the maintenance jobs described in this chapter.
Page 96 If the spark plug shows a distinctly different color, spark plug wrench included in the tool kit. the engine could be operating improperly. Do not attempt to diagnose such problems yourself. In- stead, have a Yamaha dealer check the ATV. 9-11...
Page 97 2. Check the spark plug for electrode erosion To install the spark plug and excessive carbon or other deposits, and 1. Clean the surface of the spark plug gasket replace it if necessary. and its mating surface, and then wipe off any grime from the spark plug threads.
Page 98: Engine Oil And Oil Filter Element
EBU2678C Engine oil and oil filter element The engine oil should be between the minimum The engine oil level should be checked before and maximum level marks. each ride. In addition, the oil must be changed and the oil filter element replaced at the intervals spec- ified in the periodic maintenance and lubrication chart.
Page 99 Be sure the engine oil is at the correct lev- 4. Remove the crankcase engine oil filler bolt el, otherwise engine damage may result. and its O-ring, and then remove the crank- case engine oil drain bolt and its gasket. [ECB00852] When adding oil, be careful not to overfill the en- gine oil tank;...
Page 100 1. Crankcase engine oil drain bolt 1. Engine oil tank drain bolt 2. Gasket 2. Gasket 5. Remove the engine oil tank filler cap, and then remove the engine oil tank drain bolt and Skip steps 6–9 if the oil filter element is not being its gasket.
Page 101 1. Oil filter element cover 1. Oil filter element 2. Bolt 2. O-ring 7. Remove the oil filter element and the O-rings. 8. Install a new oil filter element and new O- rings. Make sure that the O-rings are properly seated. 9.
Page 102 10. Install the crankcase engine oil drain bolt, the 14. Remove the engine oil tank filler cap, and engine oil tank drain bolt and their new gas- then gradually fill the oil tank with the remain- ket, and then tighten the bolts to the specified ing oil quantity while regularly checking the oil torques.
Page 103: Why Yamalube
EBU38620 EBU23472 Why Yamalube Coolant YAMALUBE oil is a Genuine YAMAHA Part born of The coolant level should be checked regularly. In the engineers’ passion and belief that engine oil is addition, the coolant must be changed at the in- an important liquid engine component.
Page 104 0.25 L (0.26 US qt, 0.22 Imp.qt) Radiator (including all routes): 1.68 L (1.78 US qt, 1.48 Imp.qt) If genuine Yamaha coolant is not available, use an ethylene glycol antifreeze containing corrosion in- hibitors for aluminum engines and mix with dis- tilled water at a 1:1 ratio.
Page 105 If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effective- ness of the coolant will be reduced.
Page 106 5. Remove the coolant reservoir cap. 6. Disconnect the coolant reservoir hose on the coolant reservoir side, and then drain the coolant from the coolant reservoir. 1. Coolant drain bolt 2. Gasket 4. Remove the radiator cap. 1. Coolant reservoir cap 2.
Page 107: Cleaning The Air Filter Element
9. Connect the coolant reservoir hose. 10. Pour the recommended coolant into the res- There is a check hose at the bottom of the air filter ervoir to the maximum level mark, and then case. If dust or water collects in this hose, empty install the reservoir cap.
Page 108 1. Air filter element 1. Air filter case cover 2. Washer 2. Air filter case cover holder 3. Wing bolt 4. Fully loosen the wing bolt. 6. Remove the wing bolt and washer from the air 5. Remove the air filter element together with filter element.
Page 109 10. Check the sponge material and replace it if 2. Air filter element frame damaged. 11. Apply Yamaha foam air filter oil or other qual- 8. Wash the sponge material gently but thor- ity foam air filter oil to the sponge material.
Page 110 1. Air filter element seat 1. Washer 14. Install the washer onto the air filter element 15. Insert the air filter element into the air filter frame, and then insert the wing bolt into the case, and then tighten the wing bolt. hole in the air filter element frame.
Page 111: Cleaning The Spark Arrester
17. Install the seat. The air filter element should be cleaned every 20– 40 hours. It should be cleaned and lubricated more often if the ATV is operated in extremely dusty areas. Each time the air filter element main- tenance is performed, check the air inlet of the air filter case for obstructions.
Page 112 1. Bolt 1. Tailpipe 2. Retainer 2. Spark arrester 3. Tailpipe 4. Install the gasket, tailpipe, and retainer and 4. Gasket align the bolt holes. 3. Tap the tailpipe lightly, and then use a wire 5. Install the bolts and tighten them to the spec- brush to remove any carbon deposits from ified torque.
Page 113: Adjusting The Engine Idling Speed
3. Check the engine idling speed and, if neces- Tightening torque: sary, adjust it to specification by turning the Tailpipe cover bolt: idle adjusting screw. To increase the engine 8 N·m (0.8 kgf·m, 5.9 lb·ft) idling speed, turn the idle adjusting screw in direction (a), and to decrease it, turn the EWB02342 screw in direction (b).
Page 114: Adjusting The Throttle Lever Free Play
1. Rubber cover prevent this from occurring, the valve clearance 2. Throttle lever free play adjusting bolt must be adjusted by a Yamaha dealer at the inter- 3. Locknut vals specified in the periodic maintenance and lu- 4. Throttle lever free play brication chart.
Page 115: Adjusting The Reverse Lock Release Cable
If a brake pad has worn to the point and adjusted at the intervals specified in the peri- that the wear indicator grooves have almost dis- odic maintenance and lubrication chart. appeared, have a Yamaha dealer replace the brake pads as a set. EBU29602 Brakes Replacement of brake components requires pro- fessional knowledge.
Page 116: Checking The Brake Fluid Level
If a brake pad has worn to the point Front brake (YFM70RSBL) that the wear indicator grooves have almost dis- appeared, have a Yamaha dealer replace the brake pads as a set. 1. Minimum level mark 1. Wear indicator groove...
Page 117 (YFM70RSCL / YFM70RSSL) To check the rear brake fluid level, remove the seat. (See page 5-11.) To access the rear brake fluid reservoir for replen- ishing: 1. Remove the bolt and quick fastener screw. 1. Minimum level mark Rear brake 1.
Page 118  Insufficient brake fluid may allow air to enter the brake system, reducing braking perfor- mance.  Clean the filler cap before removing. Use only DOT 4 brake fluid from a sealed contain-  Use only the specified brake fluid; otherwise, the rubber seals may deteriorate, causing leakage.
Page 119: Changing The Brake Fluid
 Oil seals: Replace every two years.  Brake hoses: Replace every four years. 1. No brake lever free play There should be no free play at the brake lever end. If there is free play, have a Yamaha dealer in- spect the brake system. 9-34...
Page 120: Checking The Brake Pedal Height
47–51 mm (1.85–2.01 in) brake pedal is not positioned as specified, have a Periodically check the cable length “A” and adjust Yamaha dealer adjust it. if necessary. 1. Release the parking brake by moving the parking brake lever to the right.
Page 121 If the cable length cannot be adjusted to specifi- again. cation, consult a Yamaha dealer. 6. Tighten the locknut on the brake cable. 7. Slide the rubber cover to its original position. 9-36...
Page 122: Brake Light Switches
The brake light switch for the brake pedal can be adjusted as follows, but the front brake light switch should be adjusted by a Yamaha dealer. Turn the rear brake light switch adjusting nut while holding the brake light switch in place. To make the brake light come on earlier, turn the adjusting nut in direction (a).
Page 123 If the specified free play cannot be obtained as de- scribed above or if the clutch does not operate correctly, have a Yamaha dealer check the internal clutch mechanism. 9-38...
Page 124: Drive Chain Slack
EBU26867 Drive chain slack The drive chain slack should be checked before each ride and adjusted if necessary. When checking and adjusting the drive chain slack, there should be no weight on the ATV and all tires must be touching the ground. To check the drive chain slack 1.
Page 125 1. Rear wheel axle pinch bolt 2. Rod 3. Drive chain tensioner 4. Hole A rod can be obtained at a Yamaha dealer to make this adjustment. Tightening torque: Rear axle pinch bolt: 4. Shift the transmission into neutral.
Page 126: Lubricating The Drive Chain
EBU24883 Lubricating the drive chain The drive chain must be cleaned and lubricated at the intervals specified in the periodic maintenance and lubrication chart, otherwise it will quickly wear out, especially when riding in dusty or wet areas. Service the drive chain as follows. ECB00562 NOTICE The drive chain must be lubricated after wash-...
Page 127: Checking And Lubricating The Brake And Clutch Levers
If a cable is damaged or does not move EBU24923 Checking and lubricating the brake smoothly, have a Yamaha dealer check or replace and clutch levers The operation of the brake and clutch levers Recommended lubricant: should be checked before each ride, and the lever Yamaha cable lubricant or other suitable pivots should be lubricated if necessary.
Page 128: Checking The Wheel Hub Bearings
Recommended lubricant: Lubricating the swingarm pivots Lithium-soap-based grease The swingarm pivots must be lubricated by a Yamaha dealer at the intervals specified in the pe- EBU24964 riodic maintenance and lubrication chart. Checking the wheel hub bearings The front and rear wheel hub bearings must be...
Page 129: Lubricating The Rear Suspension Relay Arm And Connecting Arm Pivoting Points
EBU25006 Lubricating the rear suspension relay arm and connecting arm pivoting points The rear suspension relay arm and connecting arm pivoting points must be lubricated at the inter- vals specified in the periodic maintenance and lu- brication chart. Recommended lubricant: Lithium-soap-based grease 1.
Page 130: Lubricating The Upper And Lower Arm Pivots
Left side For parts equipped with a grease nipple, use a grease gun. EBU25035 Lubricating the upper and lower arm pivots The upper and lower arm pivots must be lubricat- ed at the intervals specified in the periodic main- tenance and lubrication chart. Recommended lubricant: 1.
Page 131: Lubricating The Steering Shaft
 It is recommended to have the battery serviced Lubricating the steering shaft by a Yamaha dealer. The steering shaft must be lubricated by a Yamaha dealer at the intervals specified in the pe- riodic maintenance and lubrication chart. Recommended lubricant: Lithium-soap-based grease...
Page 132 EWB02161 WARNING Battery electrolyte is poisonous and danger- ous, as it contains sulfuric acid, which can cau- se severe burns. Avoid contact with skin, eyes or clothing. Always shield your eyes when working near batteries. Antidote: EXTERNAL: Flush with water. INTERNAL: Drink large quantities of water or milk.
Page 133 ECB00933 NOTICE To charge a VRLA (valve-regulated lead-acid) battery, a special battery charger is required. Using a conventional battery charger will dam- age the battery. To store the battery  If the ATV will not be used for more than one month, remove the battery, fully charge it, and then place it in a cool, dry place.
Page 134 2. Connect the positive battery lead first, then connect the negative battery lead by installing their bolt. NOTICE: When installing the bat- tery, the main switch must be off, and the positive lead must be connected before the negative lead. [ECB01111] 1.
Page 135: Replacing A Fuse
EBU34663 Replacing a fuse 1. Fuel injection system fuse 2. Radiator fan motor fuse 1. Main fuse 3. Ignition fuse 2. Spare main fuse 4. Signaling system fuse 5. Headlight fuse 6. Spare fuse If an electrical problem is suspected, check the fuse and replace it if necessary as follows.
Page 136: Replacing A Headlight Bulb
2. Remove the bulb cover. Fuel injection system fuse: 10.0 A 4. Turn on the main switch and start the engine. 5. If the fuse immediately blows again, have a Yamaha dealer check the vehicle. 6. Install the seat. 9-51...
Page 137 1. Socket 1. Bulb cover 4. Place a new headlight bulb into position. 3. Remove the socket by pushing it in and turn- NOTICE: Do not touch the glass part of the ing it counterclockwise, and then remove the bulb. Oil from your fingers or other con- burnt-out bulb.
Page 138: Adjusting A Headlight Beam
Adjusting a headlight beam If the brake/tail light does not come on, have a ECB00691 Yamaha dealer check it. NOTICE It is advisable to have a Yamaha dealer make EBU25653 Removing a wheel this adjustment. 1. Park the ATV on a level surface.
Page 139: Installing A Wheel
2. Loosen the wheel nuts. 1. Arrow mark 2. Forward rotating direction 1. Wheel nut 3. Wheel nut 3. Elevate the ATV and place a suitable stand 2. Lower the ATV to the ground. under the frame. 3. Tighten the wheel nuts to the specified 4.
Page 140: Troubleshooting
The following troubleshooting charts represent quick and easy procedures for checking these vi- tal systems yourself. However, should your ATV require any repair, take it to a Yamaha dealer, whose skilled technicians have the necessary tools, experience, and know-how to service the ATV properly.
Page 141: Troubleshooting Charts
Remove the spark plug and check the electrodes. The engine does not start. Have a Yamaha dealer check the ATV. Check the compression. 4. Compression The engine does not start. There is compression.
Page 142 Start the engine. If the engine overheats again, have a The coolant level Yamaha dealer check and repair the cooling system. is OK.  Tap water can be used in an emergency. Change to the recommended coolant as soon as possible.
Page 143: Cleaning And Storage
EBU25861 CLEANING AND STORAGE ter pressure may cause water seepage EBU25903 Cleaning and deterioration of wheel bearings, Frequent, thorough cleaning of your ATV will not brakes, transmission seals and electrical only enhance its appearance but will improve its devices. Many expensive repair bills have general performance and extend the useful life of resulted from improper high-pressure de- many components.
Page 144: Storage
abrasives which may mar the paint or protec- 3. Fill up the fuel tank and add fuel stabilizer (Fu- tive finish. When finished cleaning, start the el Med Rx if available), and then run the en- engine and let it idle for several minutes. gine for 5 minutes to distribute the treated fuel.
Page 145 6. Put the frame on stands or blocks to raise all wheels off the ground. (Alternatively, turn the wheels each month to prevent the tires from degrading in one spot.) 7. Cover the muffler outlet with a plastic bag to prevent moisture from entering it.
Page 146: Specifications
EBU25964 SPECIFICATIONS Dimensions: Cooling system: Liquid cooled Overall length: Valve train: 1845 mm (72.6 in) SOHC Overall width: Number of cylinders: 1155 mm (45.5 in) Single cylinder Overall height: Displacement: 1115 mm (43.9 in) 686 cm³ Seat height: Bore × stroke: 830 mm (32.7 in) 102.0 ×...
Page 147 Recommended engine oil grade: Fuel: API service SG type or higher, JASO standard MA Recommended fuel: Regular unleaded gasoline only 130 ˚F Minimum research octane: SAE 5W-30 Fuel tank capacity: 11 L (2.9 US gal, 2.4 Imp.gal) SAE 10W-30 Fuel reserve amount: SAE 10W-40 2.9 L (0.77 US gal, 0.64 Imp.gal) SAE 15W-40...
Page 148 2nd: Rear: 2.000 (28/14) 24.5 kPa (0.245 kgf/cm², 3.6 psi) 3rd: Front wheel: 1.471 (25/17) Rim size: 4th: 10 x 5.5AT 1.136 (25/22) Rear wheel: 5th: Rim size: 0.917 (22/24) 9 x 8.0AT Reverse gear: Front brake: 4.462 (24/13 x 29/12) Type: Front tire: Hydraulic disc brake...
Page 149 Shock absorber: Fuses: Gas-hydraulic damper Main fuse: Wheel travel: 30.0 A 256 mm (10.1 in) Headlight fuse: Electrical system: 10.0 A System voltage: Signaling system fuse: 12 V 10.0 A Ignition system: Ignition fuse: 10.0 A Charging system: Fuel injection system fuse: AC magneto 10.0 A Battery:...
Page 150: Consumer Information
EBU25983 CONSUMER INFORMATION EBU29663 Vehicle Emission Control Information label The Vehicle Emission Control Information label is affixed at the location in the illustration. This label shows specifications related to exhaust emissions as required by federal law, state law and Environ- ment Canada.
Page 151: Noise Regulation
EBU26061 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
EBU26081 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. MAINTENANCE INTERVAL DATE OF SERVICING DEALER...
Page 153: Yamaha Motor Corporation, U.s.a. 2020 And Later Model Atv Limited Warranty
EBU30972 YAMAHA MOTOR CORPORATION, U.S.A. 2020 AND LATER MODEL ATV LIMITED WARRANTY Yamaha Motor Corporation, U.S.A. hereby warrants THE CUSTOMER’S RESPONSIBILITY under this YAMAHA MOTOR CORPORATION, U.S.A. MAKES that new Yamaha ATVs purchased from warranty shall be to: OTHER WARRANTY...
Page 154 Attention: Warranty Department 3. Each Yamaha ATV dealer is held responsible for his setup, service and war- ranty repair work. This will ensure that Yamaha Motor Corporation, U.S.A. has an up-to-date registration record in accordance with federal law.
Page 155: Yamaha Extended Service (Y.e.s.)
Y.E.S. coverage is transferable to a new owner if you shows in the comprehensive coverage benefits. There sell or trade in your ATV. That can make your Yamaha are no mileage limitations. Coverage isn’t limited to “moving par ts” or the “drive train” like many other plans.
Page 156 Yamaha. See your dealer today! YAMAHA EXTENDED SERVICE A special note: If visiting your dealer isn’t convenient, contact Yamaha with your VIN number (vehicle identification number). We’ll be happy to help you get the Y.E.S. coverage you need. Yamaha Service Marketing P.O. Box 6555...
Page 157: Index
INDEX Drive chain slack ............9-39 Accessories and loading ..........7-6 Air filter element, cleaning ........... 9-22 Engine break-in .............. 7-5 Engine idling speed ............. 9-28 Engine oil ............... 6-4 Battery ................. 9-46 Engine oil and oil filter element ........9-13 Brake and clutch levers, checking and lubricating ..
Page 158 Maintenance and lubrication chart ........9-5 Shock absorbers, front (YFM70RSBL) ......5-12 Maintenance chart, emission control system ....9-3 Shock absorbers, front (YFM70RSCL / Maintenance record .............12-3 YFM70RSSL) ............. 5-14 Model label ..............1-1 Spark arrester, cleaning ..........9-26 Spark plug, checking ........... 9-10 Specifications ..............
Page 159 Yamalube ..............9-18 13-3...
Page 161 EBU30393 For your best ownership experience, think Genuine Yamaha! Genuine Yamaha Parts – Genuine Yamaha replacement parts are the exact same parts as the ones originally equipped on your vehicle, providing you with the performance and durability you have come to expect.
Page 162 WARNING Improper ATV use can result in SEVERE INJURY or DEATH. ALWAYS USE NEVER USE NEVER CARRY NEVER USE AN APPROVED ON PUBLIC PASSENGERS WITH DRUGS HELMET AND ROADS OR ALCOHOL PROTECTIVE GEAR NEVER ALWAYS operate: without proper training or instruction. use proper riding techniques to avoid at speeds too fast for your skills or the vehicle overturns on hills and rough...

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