Page 130 of 450

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Front brakeCheck operation, lever free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-5–5-7,
8-93, 8-97–8-103
Rear brakeCheck operation, lever free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-5–5-7,
8-95–8-101,
8-105–8-107
FuelCheck fuel level.
Fill with fuel if necessary.5-9–5-11
Engine oilCheck oil level.
Fill with oil if necessary.5-13, 8-33–8-43
Coolant reservoirCheck coolant level in reservoir.
Fill with coolant if necessary.5-19–5-21,
8-57–8-67
Final gear oil and
differential gear oilCheck for leakage.5-15–5-17,
8-43–8-55
ThrottleCheck for proper throttle cable operation and free play. 5-21, 8-91
Wheels and tiresCheck tire pressure, wear and damage.5-25–5-31,
8-115–8-117
Fittings and fastenersCheck all fittings and fasteners. 5-21
Lights and switchesCheck for proper operation.5-23, 8-109,
8-129–8-133
Axle bootsCheck for damage. 8-67
U1D960.book Page 1 Wednesday, June 23, 2004 3:59 PM
Page 138 of 450
5-9 1. Fuel level 2. Fuel tank filler tube
1. Niveau de carburant
2. Tube de remplissage du réservoir de carburant
1. Nivel de combustible
2. Tubo del relleno del depósito de combustible
EBU09981
Fuel
Make sure there is sufficient gasoline in the tank.NOTE:_ (for Europe only)
If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade. _
Recommended fuel:
Unleaded gasoline only
For Europe: Regular unleaded gasoline
only with a research octane
number of 91 or higher
Fuel tank capacity:
Total:
15.0 L
Reserve:
4.5 L
U1D960.book Page 9 Wednesday, June 23, 2004 3:59 PM
Page 140 of 450
5-11
CAUTION:_ Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system. _
WARNING
_
Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.
Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up any
spilled fuel immediately.
Do not refuel right after the engine has
been running and is still very hot.
Be sure the fuel tank cap is closed secure-
ly.
_
U1D960.book Page 11 Wednesday, June 23, 2004 3:59 PM
Page 164 of 450
6-3
EBU15071
Starting a cold engine
WARNING
_ Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision. _1. Apply the rear brake lever.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “”.
4. Shift the drive select lever into the neutral or
park position.
U1D960.book Page 3 Wednesday, June 23, 2004 3:59 PM
Page 180 of 450
6-19
0–10 hours:
Avoid continuous operation above half throttle. Al-
low a cooling off period of five to ten minutes after
every hour of operation. Vary the speed of the ma-
chine from time to time. Do not operate it at one
set throttle position.
10–20 hours:
Avoid prolonged operation above 3/4 throttle. Rev
the machine freely but do not use full throttle at any
time.
After break-in:
Avoid prolonged full throttle operation. Vary
speeds occasionally.
EBU00612
Parking
When parking, stop the engine and shift the drive
select lever into the park position, then turn the fuel
cock to the “OFF” position.
U1D960.book Page 19 Wednesday, June 23, 2004 3:59 PM
Page 281 of 450

8-8
Fuel line*Check fuel hose for cracks or damage.
Replace if necessary.Engine oil
Replace. (Warm engine before draining.)Engine oil filter cartridge
Replace.Engine oil strainer*
Clean.Final gear oil
Check oil level/oil leakage.
Replace every 12 month.Differential gear oil
Front brake*Check operation/fluid leakage. (See NOTE page 8-9.)
Correct if necessary.Rear brake*Check operation/fluid leakage.(See NOTE page 8-9.)
Correct if necessary.Select lever safety system
cable*Check operation.
Adjust if necessary.V-belt*Check operation.
Check for cracks or damage.Wheels*Check balance/damage/runout.
Repair if necessary.Wheel bearing*Check bearing assemblies for looseness/damage.
Replace if damaged.Front and rear
suspension*Check operation.
Correct if necessary.Steering system*Check operation./Replace if damaged.
Check toe-in./Adjust if necessary.Rear upper and lower
knuckle pivots*Lubricate with lithium-soap-based grease.Drive shaft universal
joint*Lubricate with lithium-soap-based grease.Engine mount*
Check for cracks or damage.
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
month136612
km
(mi)320
(200)1,200
(750)2,400
(1,500)2,400
(1,500)4,800
(3,000)
hours 20 75 150 150 300
U1D960.book Page 8 Wednesday, June 23, 2004 3:59 PM
Page 362 of 450
8-89
EBU00303
Valve clearance adjustment
The correct valve clearance changes with use, re-
sulting in improper fuel/air supply or engine noise.
To prevent this, the valve clearance must be ad-
justed regularly. This adjustment however, should
be left to a professional Yamaha service techni-
cian.
U1D960.book Page 89 Wednesday, June 23, 2004 3:59 PM
Page 410 of 450

8-137
EBU00413
Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compression, or ignition
systems can cause poor starting and loss of pow-
er. The troubleshooting chart describes a quick,
easy procedure for making checks. If your ma-
chine requires any repair, take it to a Yamaha
dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to prop-
erly service your machine. Use only genuine
Yamaha parts on your machine. Imitation parts
may look like Yamaha parts, but they are often in-
ferior. Consequently, they have a shorter service
life and can lead to expensive repair bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe in-
jury or property damage. Make sure there are
no open flames or sparks in the area, including
pilot lights from water heaters or furnaces.
U1D960.book Page 137 Wednesday, June 23, 2004 3:59 PM