Page 136 of 422

5-1
EVU01340
1-PRE-OPERATION CHECKS
Before using this vehicle, check the following points:
ITEM ROUTINE PAGE
BrakesCheck operation, free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-7–5-9,
8-87–8-95
Parking brakeCheck for proper operation, condition and free play. 8-97–8-99
FuelCheck fuel level.
Fill with fuel if necessary.5-11–5-13
Engine oilCheck oil level.
Fill with oil if necessary.5-15, 8-23–8-33
Coolant reservoirCheck coolant level.
Fill with coolant if necessary.5-17–5-19,
8-47–8-49
Final gear oil/
Differential gear oilCheck for leakage. 5-21, 8-35–8-45
Accelerator pedalCheck for proper accelerator pedal operation. 5-23
Seat beltsCheck for proper operation and belt wear. 5-23
SteeringCheck for proper operation. 5-25
Fittings and fastenersCheck all fittings and fasteners. 5-25
Lights and switchesCheck for proper operation.5-25–5-27,
8-123–8-135
Wheels and tiresCheck tire pressure, wear and damage.5-29–5-35,
8-107–8-109
Axle bootsCheck for damage. 8-51
EE.book Page 1 Friday, August 4, 2006 12:02 PM
Page 160 of 422
5-25
EVU01230
Steering
Park on level ground. Turn the steering wheel right
and left. Check for excessive free play, abnormal
noises, or a rough feeling. Have a Yamaha dealer
repair as necessary for proper operation.
EVU00470
Fittings and fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the vehicle to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.
EVU00480
Lights
Check the headlights and tail/brake lights to make
sure they are in working condition. Repair as nec-
essary for proper operation.
EE.book Page 25 Friday, August 4, 2006 12:02 PM
Page 384 of 422

8-137
EVU01530
Troubleshooting
Although Yamaha vehicles receive a rigid inspec-
tion 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 power. The troubleshooting
chart describes a quick, easy procedure for mak-
ing checks. If your vehicle 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 vehicle. Use only genuine
Yamaha parts on your vehicle. Imitation parts may
look like Yamaha parts, but they are often inferior.
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.
EE.book Page 137 Friday, August 4, 2006 12:02 PM
Page 407 of 422
10-6
Bulb voltage, wattage × quantity:
Headlight 12 V 30.0 W/30.0 W × 2
Tail/brake light 12 V 5.0 W/21.0 W × 2
Indicator lights:
Neutral indicator light LED
Reverse indicator light LED
Coolant temperature warning light LED
Parking brake indicator light LED
On-Command four-wheel-drive/differential gear
lock indicatorLCD
High-range indicator light LED
Low-range indicator light LED
On-Command differential gear lock indicator light LED
Specified fuses:
Main fuse 30.0 A
Headlight fuse 15.0 A
Ignition fuse 10.0 A
Auxiliary DC jack fuse 10.0 A
Four-wheel-drive motor fuse 3.0 A
Carburetor warmer fuse 10.0 A
Signaling system fuse 10.0 A
Backup fuse 10.0 AModel YXR66FW
EE.book Page 6 Friday, August 4, 2006 12:02 PM