Page 9 of 160

OPERATION ................................................... 6-1Starting the engine ...................................... 6-1
Shifting ........................................................ 6-2
Operating the reverse knob and driving in reverse ...................................................... 6-4
Engine break-in ........................................... 6-5
Parking ........................................................ 6-5
Parking on a slope ...................................... 6-6
Accessories and loading ............................. 6-6
RIDING YOUR ATV ........................................ 7-1 GETTING TO KNOW YOUR ATV ................ 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............... 7-8
TURNING YOUR ATV................................ 7-11
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL .................................. 7-16
CROSSING A SLOPE................................ 7-17
CROSSING THROUGH SHALLOW WATER .................................................... 7-18
RIDING OVER ROUGH TERRAIN ............. 7-20
SLIDING AND SKIDDING.......................... 7-20
WHAT TO DO IF... ..................................... 7-21
WHAT TO DO... ......................................... 7-22 PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for the emission control system ........................... 8-3
General maintenance and lubrication chart.......................................................... 8-5
Removing and installing the panel............ 8-10
Checking the spark plug........................... 8-10
Engine oil and oil filter element................. 8-13
Coolant ..................................................... 8-17
Cleaning the air filter element ................... 8-21
Cleaning the spark arrester ...................... 8-25
Adjusting the engine idling speed ............ 8-27
Adjusting the throttle lever free play ......... 8-28
Valve clearance......................................... 8-29
Adjusting the reverse lock release cable ....................................................... 8-29
Brakes....................................................... 8-29
Checking the front and rear brake pads... 8-29
Checking the brake fluid level .................. 8-31
Changing the brake fluid .......................... 8-33
Checking the front brake lever free play... 8-33
Checking the brake pedal height.............. 8-34
Adjusting the parking brake free play ....... 8-34
Brake light switches ................................. 8-36
Adjusting the clutch lever free play .......... 8-36U2LS62E0.book Page 2 Thursday, February 25, 2016 8:44 AM
Page 27 of 160
3-2
3
EBU17701Right view1. Spark arrester
2. Air filter case
3. Rear brake fluid reservoir
4. Crankcase engine oil filler bolt
5. Oil filter element
6. Spark plug
7. Front shock absorber assembly compression damping force adjusting bolt (for fast compression damping)
(YFM70RSSH/YFM70RSXH)
8. Front shock absorber assembly compression damping force adjusting screw (for slow compression damping)
(YFM70RSSH/YFM70RSXH)
9. Front shock absorber assembly spring preload adjusting nut (YFM70RSSH/YFM70RSXH)
10.Front shock absorber assembly spring preload adjusting ring (YFM70RSBH)1
23
456 7,8,9
1312
14
10,11
11.Front shock absorber assembly rebound damping force adjusting screw (YFM70RSSH/YFM70RSXH)
12.Crankcase engine oil drain bolt
13.Brake pedal
14.Rear brake light switch
U2LS62E0.book Page 2 Thursday, February 25, 2016 8:44 AM
Page 28 of 160
3-3
3
EBU17714Controls and instruments
TIPThe ATV you have purchased may differ slightly
from the figures shown in this manual.
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
12 3
4
5
67
8
U2LS62E0.book Page 3 Thursday, February 25, 2016 8:44 AM
Page 56 of 160

5-2
5
Front brake• Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check brake pads for wear, and replace if necessary.
• Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
• Check hydraulic system for leakage. Correct if necessary. 5-4, 8-29, 8-31, 8-33
Rear brake • Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check brake pads for wear, and replace if necessary.
• Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
• Check hydraulic system for leakage. Correct if necessary. 5-4, 8-29, 8-31, 8-34
Clutch • Check operation, and correct if necessary.
• Lubricate cable if necessary.
• Check lever free play, and adjust if necessary. 8-36
Throttle lever • Make sure that operation is smooth. Lubricate cable and lever
housing if necessary.
• Check lever free play, and adjust if necessary. 5-5, 8-28
Control cables • Make sure that operation is smooth. Lubricate if necessary. 8-40
Drive chain • Check chain slack, and adjust if necessary.
• Check chain condition. Lubricate if necessary. 5-5, 8-38, 8-40
Wheels and tires • Check wheel condition, and replace if damaged.
• Check tire condition and tread depth. Replace if necessary.
• Check air pressure. Correct if necessary. 5-5
Shift pedal • Make sure that operation is smooth.
• Correct if necessary.
8-41
Brake pedal • Make sure that operation is smooth. Lubricate pedal pivoting point
if necessary. 8-41
ITEM ROUTINE PAGEU2LS62E0.book Page 2 Thursday, February 25, 2016 8:44 AM
Page 58 of 160

5-4
5
EBU19542FuelMake sure that there is sufficient fuel in the tank.
(See page 4-10.)EBU19561Engine oilMake sure that the engine oil is at the specified
level. Add oil as necessary. (See page 8-13.)EBU19632CoolantMake sure that the coolant is at the specified level.
Add coolant as necessary. (See page 8-17.)TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. EBU19713Front and rear brakesBrake 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.
Check for correct brake pedal height. (See page
8-34.) If the pedal height is incorrect, have a
Yamaha dealer adjust it.
Check the operation of the lever and pedal.
They should move smoothly and there should
be a firm feeling when the brakes are applied. If
not, have a Yamaha dealer check the brake sys-
tem.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See page 8-31.)
Brake fluid leakage
Check to see if any brake fluid is leaking out of the
pipe joints or brake fluid reservoirs. Apply the
brakes firmly for one minute. If there is any leak-
age, have a Yamaha dealer check the brake sys-
tem. Specified brake fluid:
DOT 4U2LS62E0.book Page 4 Thursday, February 25, 2016 8:44 AM
Page 97 of 160

8-5
8
EBU2186AGeneral maintenance and lubrication chartTIPFor ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should still be followed.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills. NO. ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 Air filter element • Clean and replace if necessary. Every 20–40 hours (more often in wet or
dusty areas)
2 *Clutch • Check operation and adjust if necessary. √ √√√
3 *Front brake • Check operation and correct if necessary.
• Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
• Replace brake pads. Whenever worn to the limit
4 *Rear brake • Check operation and correct if necessary.
• Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
• Replace brake pads. Whenever worn to the limit
U2LS62E0.book Page 5 Thursday, February 25, 2016 8:44 AM
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8-6
8
5*Brake hoses • Check for cracks or other damage, and replace if
necessary. √√√√
• Replace. Every 4 years
6 *Brake fluid • Change. Every 2 years
7 *Parking brake • Check operation and adjust if necessary. √√√√√
8 *Wheels • Check runout and for damage, and replace if nec-
essary. √ √√√
9 *Tires • Check tread depth and for damage, and replace if
necessary.
• Check air pressure and balance, and correct if necessary. √ √√√
10 *Wheel hub bearings • Check for looseness or damage, and replace if
necessary. √ √√√
11 *Swingarm pivots • Check operation and for excessive play, and re-
place bearings if necessary.
• Lubricate with lithium-soap-based grease. √√√
12 *Upper and lower
arm pivots • Lubricate with lithium-soap-based grease.
√√√
13 Drive chain • Check chain slack and adjust if necessary.
• Check rear wheel alignment and correct if neces-
sary.
• Clean and lubricate. √√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev-
er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LS62E0.book Page 6 Thursday, February 25, 2016 8:44 AM
Page 101 of 160
8-9
8
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.
U2LS62E0.book Page 9 Thursday, February 25, 2016 8:44 AM