8-43
8
EBU25720Troubleshooting Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
can cause poor starting and loss of power.
The following troubleshooting chart represents a
quick and easy procedure for checking these vital
systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary tools, expe-
rience, 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
EWB02280Do 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.U33B70E0.book Page 43 Wednesday, June 11, 2008 1:38 PM
INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-13
Auxiliary light bulb ........................................................ 8-41BBattery .......................................................................... 8-36
Brake and clutch levers, checking and lubricating ....... 8-33
Brake fluid, changing .................................................... 8-24
Brake fluid level, checking ............................................ 8-22
Brake lever free play, checking the front ...................... 8-24
Brake lever (YFM250RSE-W) ........................................ 4-7
Brake lever (YFM250R-W) ............................................. 4-6
Brake light switches ..................................................... 8-27
Brake pads, checking the front and rear ...................... 8-21
Brake pedal .................................................................... 4-7
Brake pedal, checking and lubricating ......................... 8-34
Brake pedal position, checking .................................... 8-25
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-32
Carburetor, adjusting .................................................... 8-18
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-6
Clutch lever free play, adjusting ................................... 8-28DDrive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-31Drive chain slack .......................................................... 8-29
EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-19
Engine oil ....................................................................... 5-3
Engine oil and oil filter element ...................................... 8-9
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-3FFuel ....................................................................... 4-10, 5-3
Fuel cock ...................................................................... 4-11
Fuel tank cap .................................................................. 4-9
Fuse, replacing ............................................................. 8-38HHandlebar switches ........................................................ 4-3
Hazard switch ................................................................. 4-4
Headlight beam ............................................................ 8-40
Headlight bulb .............................................................. 8-39
High beam indicator light ................................................ 4-2
Horn switch .................................................................... 4-4IIdentification numbers .................................................. 11-1
Indicator lights ................................................................ 4-2
Instruments, lights and switches .................................... 5-6KKey identification number ............................................. 11-1
U33B70E0.book Page 1 Wednesday, June 11, 2008 1:38 PM
