light YAMAHA GRIZZLY 660 2008 Owner's Guide

8-56
8
EBU25740Troubleshooting 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 charts represent
quick and easy procedures 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.U23D60E0.book Page 56 Thursday, March 15, 2007 7:59 PM

10-4
10
Rear:
33.0 kPa (4.8 psi) (0.330 kgf/cm²)
Front wheel:Wheel type:
Panel wheel
Rim size:
12 x 6.0ATRear wheel:Wheel type:
Panel wheel
Rim size:
12 x 7.5ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Left hand and right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damperWheel travel:
170 mm (6.7 in)
Rear suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
225 mm (8.9 in)Electrical system:Ignition system:
DC. CDI
Charging system:
AC magnetoBattery:Model:
YTX20L-BS
Voltage, capacity:
12 V, 18.0 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage x quantity:Headlight:
12 V, 30.0/30.0 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Neutral indicator light:
LED
Reverse indicator light:
LED
U23D60E0.book Page 4 Thursday, March 15, 2007 7:59 PM

10-5
10
Coolant temperature warning light:
LED
Park indicator light:
LED
On-Command four-wheel-drive/differential gear lock
indicator:
LCD
High-range indicator light:
LED
Low-range indicator light:
LED
Differential gear lock indicator light:
LEDFuses:Main fuse:
30.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Auxiliary DC jack fuse:
10.0 A
Backup fuse:
10.0 A
Four-wheel-drive motor fuse:
3.0 A
U23D60E0.book Page 5 Thursday, March 15, 2007 7:59 PM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-21
Air filter element, cleaning ............................................ 8-30
Axle boots .................................................................... 8-44BBattery .......................................................................... 8-48
Brake fluid, changing .................................................... 8-41
Brake fluid level, checking ............................................ 8-39
Brake lever free play and brake pedal position (rear),
adjusting and checking .............................................. 8-42
Brake lever free play, checking the front ...................... 8-41
Brake lever, front .......................................................... 4-12
Brake levers, checking and lubricating ......................... 8-45
Brake light switches ..................................................... 8-44
Brake pads, checking the front and rear ...................... 8-38
Brake pedal and rear brake lever ................................. 4-13
Brake pedal, checking and lubricating ......................... 8-46
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-45
Carburetor, adjusting .................................................... 8-36
Carrier, front ................................................................. 4-20
Carrier, rear .................................................................. 4-20
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-26
Coolant temperature warning light ................................. 4-2
DDifferential gear lock indicator light ................................ 4-3
Differential gear oil ................................................ 5-3, 8-24
Drive select lever .......................................................... 4-14
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-38EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-36
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-18
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-6FFinal gear oil .......................................................... 5-3, 8-22
Four-wheel-drive/differential gear lock indicator ............ 4-3
Fuel ....................................................................... 4-15, 5-3
Fuel cock ...................................................................... 4-16
Fuel tank cap ................................................................ 4-14
Fuses, replacing ........................................................... 8-50HHandlebar switches ........................................................ 4-6
Headlight beam, adjusting ............................................ 8-53
Headlight bulb, replacing .............................................. 8-51
High-range indicator light ............................................... 4-3
Horn switch .................................................................... 4-6
U23D60E0.book Page 1 Thursday, March 15, 2007 7:59 PM

IIdentification numbers .................................................. 11-1
Indicator lights and warning light .................................... 4-2
Instruments, lights and switches .................................... 5-7KKey identification number ............................................. 11-1LLabel locations ............................................................... 2-1
Light switch .................................................................... 4-6
Low-range indicator light ................................................ 4-3MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multifunction display ....................................................... 4-4NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................... 4-9
On-Command four-wheel-drive switch ........................... 4-8
Override switch .............................................................. 4-7
Owner’s manual and tool kit ........................................... 8-1PPanels, removing and installing ..................................... 8-9
Park indicator light ......................................................... 4-3
Parking ........................................................................... 6-6
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1
Pre-operation check list ................................................. 5-1
RRear knuckle pivots, lubricating ................................... 8-47
Recoil starter ................................................................ 4-14
Reverse indicator light ................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 1-1
Seat ............................................................................. 4-18
Shock absorber assemblies,
adjusting the front and rear ........................................ 4-20
Spark arrester, cleaning ............................................... 8-34
Spark plug, checking ................................................... 8-16
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-12
Stabilizer bushes, checking ......................................... 8-47
Starter (choke) ............................................................. 4-17
Start switch .................................................................... 4-6
Steering shaft, lubricating ............................................ 8-48
Storage .......................................................................... 9-2
Storage compartment .................................................. 4-19TTail/brake light bulb, replacing ..................................... 8-53
Throttle cable free play, adjusting ................................ 8-37
Throttle lever ......................................................... 4-11, 5-5
Tire pressure, measuring ............................................... 5-6
Tires ............................................................................... 5-5
Tire wear limit ................................................................ 5-7
Troubleshooting ........................................................... 8-56
Troubleshooting charts ................................................ 8-57VValve clearance ........................................................... 8-38
V-belt case drain plug .................................................. 8-35
U23D60E0.book Page 2 Thursday, March 15, 2007 7:59 PM