Page 11 of 180

Brake light switches .................................. 8-48
Checking and lubricating the cables......... 8-48
Checking and lubricating the front and rear brake levers ..................................... 8-49
Checking and lubricating the brake pedal ....................................................... 8-50
Checking the wheel hub bearings............. 8-50
Checking the stabilizer bushes ................. 8-51
Lubricating the rear knuckle pivots ........... 8-51
Lubricating the steering shaft ................... 8-52
Battery....................................................... 8-53
Replacing a fuse ....................................... 8-56
Replacing a headlight bulb ....................... 8-59
Adjusting a headlight beam ...................... 8-62
Replacing the brake/tail light bulb ............ 8-63
Removing a wheel ..................................... 8-64
Installing a wheel....................................... 8-64
Troubleshooting ........................................ 8-65
Troubleshooting charts ............................. 8-66
CLEANING AND STORAGE ........................... 9-1 Cleaning ...................................................... 9-1
Storage........................................................ 9-2 SPECIFICATIONS ........................................ 10-1
CONSUMER INFORMATION....................... 11-1
Identification numbers .............................. 11-1
INDEX .......................................................... 12-1
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8-65
8
2. Lower the ATV to the ground.
3. Tighten the wheel nuts to the specified
torques.
EBU25741TroubleshootingAlthough Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the
fuel, compression, or ignition systems, for exam-
ple, can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vi-
tal systems yourself. However, should your ATV
require any repair, take it to a Yamaha dealer,
whose skilled technicians have the necessary
tools, experience, and know-how to service the
ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02281Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.
1. Tapered nutTightening torques:Front wheel nut:55 N·m (5.5 kgf·m, 41 lb·ft)
Rear wheel nut: 55 N·m (5.5 kgf·m, 41 lb·ft)1
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8-66
8
EBU27696Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the ATV.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug. Have a Yamaha dealer check the ATV.
The engine does not start.
Check the compression.
DryWet
Operate the electric starter.
Have a Yamaha dealer check the ATV.
The engine does not start.
Check the ignition.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
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12-3
12
Steering shaft, lubricating ............................................ 8-52
Storage .......................................................................... 9-2
Storage compartment .................................................. 4-25TThrottle lever .........................................................4-18, 5-4
Throttle lever free play, adjusting ................................ 8-41
Tires ............................................................................... 5-4
Trailer hitch .................................................................. 4-28
Troubleshooting ........................................................... 8-65
Troubleshooting charts ................................................ 8-66VValve clearance ............................................................ 8-41
V-belt case drain plug .................................................. 8-40
Vehicle identification number ...................................... 11-1WWheel hub bearings, checking .................................... 8-50
Wheel, installing ........................................................... 8-64
Wheel, removing .......................................................... 8-64
UB5K60E0.book Page 3 Monday, May 28, 2018 11:35 AM