8-14
8Be sure the engine oil is at the correct lev-
el, otherwise engine damage may result.
[ECB00852]
TIPWhen adding oil, be careful not to overfill the en-
gine oil tank; the oil level rises faster starting from
the half-level-portion on the dipstick. 6. Check the O-ring for damage, and replace it
if necessary.
7. Insert the dipstick into the engine oil tank filler hole, and then tighten the engine oil tank filler
cap. NOTICE: Make sure that the engine oil
tank filler cap is securely tightened; other-
wise, oil may seep out when the engine is
running.
[ECB00363]
To change the engine oil (with or without oil fil-
ter element replacement) 1. Place the ATV on a level surface.
2. Start the engine, warm it up for several minu- tes, and then turn it off.
3. Place an oil pan under the engine to collect the used oil. 4. Remove the crankcase engine oil filler bolt
and its O-ring, and then remove the crank-
case engine oil drain bolt and its gasket.
1. Crankcase engine oil filler bolt
2. O-ring
21
U2LS63E0.book Page 14 Friday, March 31, 2017 8:42 AM
8-17
8
10. Install the crankcase engine oil drain bolt, the
engine oil tank drain bolt and their new gas-
ket, and then tighten the bolts to the specified
torques.
11. Install the crankcase engine oil filler bolt and its new O-ring, and then tighten the oil filler
bolt to the specified torque.
12. Pour only 1.3 L (1.37 US qt, 1.14 Imp.qt) of the specified amount of the recommended
engine oil through the engine oil tank filler
hole, and then install and tighten the oil tank
filler cap.
13. Start the engine, rev it several times, and then turn it off. 14. Remove the engine oil tank filler cap, and
then gradually fill the oil tank with the remain-
ing oil quantity while regularly checking the oil
level on the dipstick.
15. Check the O-ring for damage, and replace it if necessary.
16. Install and tighten the engine oil tank filler cap.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down. NOTICEECB00301In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
Tightening torques:
Crankcase engine oil drain bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
Engine oil tank drain bolt: 19 N·m (1.9 kgf·m, 14 lb·ft)
Tightening torque: Crankcase engine oil filler bolt:12 N·m (1.2 kgf·m, 8.9 lb·ft)Recommended oil: See page 10-1.
Oil quantity: Without oil filter element replacement:1.75 L (1.85 US qt, 1.54 Imp.qt)
With oil filter element replacement: 1.85 L (1.96 US qt, 1.63 Imp.qt)
U2LS63E0.book Page 17 Friday, March 31, 2017 8:42 AM
8-18
8with a diesel specification of “CD” or oils of
a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II” or higher.
Make sure that no foreign material enters the
crankcase.
17. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
18. Turn the engine off, and then check the oil level and correct it if necessary.EBU23471CoolantThe coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.EBU27945To check the coolant level1. Place the ATV on a level surface.
TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. 2. Check the coolant level in the coolant reser- voir.TIPThe coolant should be between the minimum and
maximum level marks. 1. Maximum level mark
2. Minimum level mark
12
U2LS63E0.book Page 18 Friday, March 31, 2017 8:42 AM
8-24
88. Wash the sponge material gently but thor-
oughly in solvent. WARNING! Always use
parts cleaning solvent. Never use low-
flash-point solvents or gasoline because
the engine could catch fire or explode.
[EWB01943]
9. Squeeze the excess solvent out of the sponge material and let it dry. NOTICE: Do
not twist the sponge material when
squeezing it.
[ECB00442]
10. Check the sponge material and replace it if damaged.
11. Apply Yamaha foam air filter oil or other qual- ity foam air filter oil to the sponge material.TIPThe sponge material should be wet but not drip-
ping. 12. Pull the sponge material over the air filter ele-ment frame.
13. Apply all-purpose grease to the air filter ele- ment seat.
1. Sponge material
2. Air filter element frame
2
1
U2LS63E0.book Page 24 Friday, March 31, 2017 8:42 AM
8-33
8
3. After replenishing, place the cowling in the
original position, and then install the bolt and
quick fastener screw.
WARNING
EWB02721Improper maintenance can result in loss of
braking ability. Observe these precautions:
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-
er.
Use only the specified brake fluid; otherwise,
the rubber seals may deteriorate, causing
leakage.
Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
Be careful that water does not enter the
brake fluid reservoir when refilling. Water will
significantly lower the boiling point of the flu-
id and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately. As the brake pads wear, it is normal for the brake
fluid level to gradually go down. A low brake fluid
level may indicate worn brake pads and/or brake
system leakage; therefore, be sure to check the
1. Cowling
2. Brake fluid reservoir capSpecified brake fluid:
DOT 4
1
2
U2LS63E0.book Page 33 Friday, March 31, 2017 8:42 AM
8-34
8brake pads for wear and the brake system for
leakage. If the brake fluid level goes down sud-
denly, have a Yamaha dealer check the cause be-
fore further riding.
EBU24293Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in the periodic maintenance
and lubrication chart. In addition, have the oil seals
of the master cylinders and calipers as well as the
brake hoses replaced at the intervals listed below
or whenever they are damaged or leaking.
Oil seals: Replace every two years.
Brake hoses: Replace every four years.
EBU24396Checking the front brake lever free
playThere should be no free play at the brake lever
end. If there is free play, have a Yamaha dealer in-
spect the brake system.1. No brake lever free play
U2LS63E0.book Page 34 Friday, March 31, 2017 8:42 AM
8-41
8
EBU24883Lubricating the drive chainThe 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.NOTICEECB00562The drive chain must be lubricated after wash-
ing the ATV or riding in the rain or wet areas. 1. Clean the drive chain with kerosene and asmall soft brush. NOTICE: To prevent dam-
aging the O-rings, do not clean the drive
chain with steam cleaners, high-pressure
washers or inappropriate solvents.
[ECB00572]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain lubricant. NOTICE: Do
not use engine oil or any other lubricants
for the drive chain, as they may contain
substances that could damage the O-
rings.
[ECB00582]
EBU24905
Checking and lubricating the cablesThe operation and the condition of all control ca-
bles should be checked before each ride, and the
cables and cable ends should be lubricated if nec-1. O-ring
1
1
U2LS63E0.book Page 41 Friday, March 31, 2017 8:42 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-22BBattery .......................................................................... 8-46
Brake and clutch levers, checking and lubricating ...... 8-42
Brake fluid, changing ...................................................8-34
Brake fluid level, checking ........................................... 8-31
Brake lever ..................................................................... 4-6
Brake lever free play, checking the front ..................... 8-34
Brake light switches ..................................................... 8-37
Brake pads, checking the front and rear ..................... 8-30
Brake pedal .................................................................... 4-7
Brake pedal, checking and lubricating ........................ 8-42
Brake pedal height, checking ...................................... 8-35
Brakes .......................................................................... 8-30
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-41
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-5
Clutch lever free play, adjusting ................................... 8-37
Coolant ................................................................. 5-4, 8-18
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-5
Drive chain, lubricating ................................................ 8-41
Drive chain slack .......................................................... 8-39
EEngine break-in .............................................................. 6-5
Engine idling speed ...................................................... 8-28
Engine oil ....................................................................... 5-4
Engine oil and oil filter element .................................... 8-13
Engine, start ................................................................... 6-1
Engine stop switch ......................................................... 4-3
Engine trouble warning light .......................................... 4-2FFuel ........................................................................ 4-9, 5-4
Fuel level warning light ................................................... 4-2
Fuel tank cap ................................................................. 4-9
Fuses, replacing ........................................................... 8-50HHandlebar switches ....................................................... 4-3
Headlight beam, adjusting ........................................... 8-53
Headlight bulb, replacing ............................................. 8-51IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-1
Instruments, lights and switches ................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-4MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................ 8-5
Maintenance chart, emission control system ................ 8-3
Model label .................................................................. 11-1
U2LS63E0.book Page 1 Friday, March 31, 2017 8:42 AM