9-34
9
7. Install the oil filler bolt and its gasket, andthen tighten the bolt to the specified
torque.
8. Check for oil leakage. If oil leakage is found, check for the cause.EBU36064Differential gear oilCheck the oil level and change the differential
gear oil at the intervals specified in the period-
ic maintenance chart.NOTICEECB03600When checking or changing the differen-
tial gear oil, make sure that no foreign ma-
terial enters the differential gear case. If
necessary, clean the differential gear oil
filler bolt and surrounding area.
TIPIf the recommended gear oil is not available,
SAE 80W-90 API GL-4 or GL-5 hypoid gear
oil may be used instead. Checking the differential gear oil level 1. Park the vehicle on a level surface.
2. Remove the differential gear oil filler bolt and its gasket, and then check the oil lev-
el. It should be up to the brim of the filler
hole.
Tightening torque:Final gear oil filler bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
Recommended oil:SAE 80 API GL-4 Hypoid gear oil
Oil quantity: 0.18 L (0.19 US qt, 0.16 Imp.qt)
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9
3. If the level is low, add sufficient oil of therecommended type to raise it to the
specified level.
4. Check the gasket for damage, and re- place it if necessary.
5. Install the differential gear oil filler bolt
and its gasket, and then tighten the bolt
to the specified torque. Changing the differential gear oil
1. Park the vehicle on a level surface.
2. Place an oil pan under the differential
gear case to collect the used oil.
3. Remove the differential gear oil filler bolt,
the differential gear oil drain bolt and their
gasket to drain the oil.1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Tightening torque:Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)1. Differential gear oil drain bolt
2. Gasket
1 2
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9
4. Install the differential gear oil drain boltand its new gasket, and then tighten the
bolt to the specified torque.
5. Refill the differential gear case with the recommended oil.
6. Check the oil filler bolt gasket for dam- age, and replace it if necessary.
7. Install the differential gear oil filler bolt and its gasket, and then tighten the bolt
to the specified torque.
8. Check for oil leakage. If oil leakage is found, check for the cause.
EBU35112CoolantThe coolant level should be checked regular-
ly. In addition, the coolant must be changed
at the intervals specified in the periodic main-
tenance chart.TIPIf genuine Yamaha coolant is not available,
use an ethylene glycol antifreeze containing
corrosion inhibitors for aluminum engines and
mix with distilled water at a 1:1 ratio.
Tightening torque:Differential gear oil drain bolt:9.8 N·m (0.98 kgf·m, 7.2 lb·ft)
Tightening torque: Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (up to full level):0.56 L (0.59 US qt, 0.49 Imp.qt)
Radiator (including all routes): 3.78 L (4.00 US qt, 3.33 Imp.qt)
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9
EBU38320Air filter maintenanceThis model is equipped with two air filter ele-
ments, a primary foam-type air filter and a
secondary paper-type air filter.
The primary air filter is easily accessed and
should be cleaned and oiled every 300–600
km (200–400 mi).
The secondary air filter is more difficult to ac-
cess, cannot be cleaned, and should be re-
placed by a Yamaha dealer every 2000–5000
km (1200–3000 mi).
TIPService the air filters more frequently when
operating in wet or dusty environments. Whenever air filter maintenance is performed:
check the air inlet for obstructions and the
air filter case for dirt and foreign matter.
check the air filter case check hoses for dirt
or water and clean as necessary.
check the air filter cas e joints and the rub-
ber joints to and from the throttle body for
proper fit and sealing.
tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.NOTICEECB02270Never operate the engine with the air filter
element removed. Doing so would allow
unfiltered air to enter, causing rapid en-
gine wear and possible engine damage.
1. Primary air filter
2. Secondary air filter
1
2
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9
WARNING
EWB04160Improper maintenance can result in loss of
braking ability or YCC-S clutch operation.
Observe these precautions:
Insufficient brake or YCC-S clutch fluid
may allow air to enter the brake or
YCC-S clutch system, reducing braking
or YCC-S clutch performance.
Clean the filler caps before removing.
Use only DOT 4 brake fluid from a sealed
container.
Use only the specified brake fluid; other-
wise, the rubber seals may deteriorate,
causing leakage.
Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4
may result in a harmful chemical reac-
tion.
Be careful that water or dust does not
enter the brake or YCC-S clutch fluid
reservoir when refilling. Water will signif-
icantly lower the boiling point of the fluid
and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately. 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 or brake system leakage; therefore, be
sure to check the brake pads for wear and the
brake system for leakage. A low YCC-S
clutch fluid level may indicate YCC-S clutch
system leakage; therefore, be sure to check
the YCC-S clutch system for leakage. If the
brake or YCC-S clutch fluid level goes down
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9
suddenly, have a Yamaha dealer check and
repair the vehicle before any further opera-
tion.EBU36550Brake and YCC-S clutch fluid replace-
mentComplete fluid replacement should be done
only by trained Yamaha service personnel.
Have a Yamaha dealer replace the following
components during periodic maintenance or
when they are damaged or leaking.
Replace the oil seals every two years.
Replace the brake and YCC-S clutch hoses
every four years.EBU36540YCC-S clutchThis model is equipped with a hydraulic
clutch, therefore, it is necessary to check the
YCC-S clutch fluid level and check the hy-
draulic system for leak age before each drive.
If the YCC-S clutch plates wear out, shifting
becomes rough or clutch slippage will occur, causing poor acceleration. If any of the above
occurs, have a Yamaha dealer check the
YCC-S clutch.
EBU32531Checking the brake pedalHave a Yamaha dealer check the brakes at
the intervals specified in the periodic mainte-
nance chart. There should be no free play in
the brake pedal. The brakes should operate
smoothly and there should be no brake drag.
If the brakes feel soft or spongy, this could in-
dicate air in the brake system. Have a
Yamaha dealer check the brake system if necessary.
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9
EBU35232BatteryThis model is equipped with a 12–volt VRLA
(valve–regulated lead–acid) battery. There is
no need to check the electrolyte or to add dis-
tilled water. However, the battery lead con-
nections need to be checked and tightened,
and the battery terminals cleaned if corroded.
If the battery seems to have discharged, re-
charge it as soon as possible.
WARNING
EWB03410Avoid battery contact with skin, eyes, or
clothing. Shield eyes when working near
batteries. Keep out of reach of children.
You could be poisoned or severely burnedby the sulfuric acid in battery electrolyte. In
case of accidental contact with battery
electrolyte:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg, or vegetable oil. Get prompt
medical attention.
EYES: Flush with water for 15 minutes and
get prompt medical attention.
WARNING
EWB03420Batteries may produce explosive gases.
Ventilate when charging or using in a
closed space. Keep batteries away from
sparks, flames, cigarettes, or other sourc-
es of ignition. To remove the battery
1. Turn the key to “ ” (off).
2. Remove panel A. (See page 9-11.)
Tightening torques: Front wheel nut:95 N·m (9.5 kgf·m, 70 lb·ft)
Rear wheel nut: 95 N·m (9.5 kgf·m, 70 lb·ft)
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13
INDEX
AAccelerator pedal ......................................................... 5-21
Accelerator pedal, checking ........................................ 9-52
Accelerator pedal, Pre-operation check ........................ 6-6
Air filter ......................................................................... 9-41
Air filter case hoses, cleaning ...................................... 9-45
Auxiliary DC jack .......................................................... 5-49
Axle boots .................................................................... 9-38BBasic guide for safe use ................................................ 8-1
Battery, Periodic maintenance .................................... 9-60
Bead lock, checking and tightening (equipped models) ..................................................... 9-58
Brake and YCC-S clutch fluid levels, checking ........... 9-49
Brake fluid, replacing ................................................... 9-51
Brake light switch ........................................................ 9-54
Brake pedal .................................................................. 5-22
Brake pedal, checking ................................................. 9-51
Brakes, Periodic maintenance ..................................... 9-47
Brakes, Pre-operation check ......................................... 6-3
Brake/tail light .............................................................. 9-69CCable, inspecting and lubrication ................................ 9-54
Cargo bed .................................................................... 5-31
Cleaning ....................................................................... 10-1
Control cables, Pre-operation check ............................. 6-8
Coolant, Periodic maintenance ................................... 9-36
Coolant, Pre-operation check ........................................ 6-6
Coolant temperature warning light ................................ 5-4 Cup holders ................................................................. 5-30
DData recording, vehicle ................................................ 12-1
Differential gear lock indicator light ............................... 5-3
Differential gear oil, Periodic maintenance .................. 9-34
Differential gear, Pre-operation check ........................... 6-6
Doors ........................................................................... 5-25
Drive mode, selecting .................................................. 7-10
Driver seat position ...................................................... 5-27
Drive select lever and shift paddles ............................. 5-24
Drive select lever and shift paddles, Pre-operation
check ........................................................................... 6-7
Drive shaft universal joint, lubrication .......................... 9-56
Drivetrain icon ................................................................ 5-3
Dynamic clutch engagement ......................................... 7-7EEngine break-in .............................................................. 7-1
Engine oil and oil filter, Periodic maintenance ............. 9-18
Engine oil, Pre-operation check .................................... 6-5
Engine trouble warning light .......................................... 5-5
EPS warning light .......................................................... 5-5FFinal gear oil, Periodic maintenance ............................ 9-31
Final gear, Pre-operation check .................................... 6-6
Fittings and fasteners, Pre-operation check ................. 6-8
Flag pole bracket ......................................................... 5-32
Four–wheel drive knob (On–Command 4WD) ............. 5-21
Front and rear brake pads, checking .......................... 9-48
Fuel, Pre-operation check ............................................. 6-3
Fuel tank cap ............................................................... 5-25
Fuse, replacing ............................................................ 9-65
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