2006 YAMAHA GRIZZLY 660 brake pads

OPERATION ............................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine .........................6-9
Warming up...........................................6-9
Drive select lever operation and
reverse driving ..................................6-11
Engine break-in ...................................6-17
Parking ................................................6-19
Parking on a slope ..............................6-21
Accessories and loading .....................6-23
RIDING YOUR ATV..................................7-1
Getting to know your ATV .....................7-3
Ride with care and good judgement .....7-5
Be careful where you ride ...................7-27
Turning your ATV ................................7-39
Climbing uphill.....................................7-45
Riding downhill ....................................7-55
Crossing a slope .................................7-59
Crossing through shallow water ..........7-63
Riding over rough terrain ....................7-69
Sliding and skidding ............................7-71
What to do if ........................................7-75
What to do...........................................7-75
67
PERIODIC MAINTENANCE AND
ADJUSTMENT ......................................... 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication.......... 8-7
Panel removal and installation............ 8-17
Engine oil and oil filter cartridge ......... 8-39
Final gear oil ....................................... 8-53
Differential gear oil.............................. 8-57
Cooling system ................................... 8-63
Changing the coolant.......................... 8-67
Axle boots ........................................... 8-75
Spark plug inspection ......................... 8-77
Air filter element cleaning ................... 8-83
V-belt cooling duct check hose ........... 8-91
V-belt case drain plug ......................... 8-91
Carburetor adjustment ........................ 8-93
Idle speed adjustment ........................ 8-95
Valve clearance adjustment ............... 8-97
Select lever safety system cable
adjustment ........................................ 8-97
Throttle lever adjustment .................... 8-99
Front brake pad check ...................... 8-101
Checking the rear brake pads .......... 8-101
Checking the brake fluid level........... 8-103
Brake fluid replacement .................... 8-107
Front brake lever free play................ 8-109
8
U2C660.book Page 2 Monday, April 11, 2005 10:29 AM

5-9
Brake fluid leakage
Check to see if any brake fluid is leaking out of the
pipe joints or brake fluid reservoirs. Apply the
brakes firmly for one minute. If the lever moves
slowly inward, there may be a leak in the brake
system. If there is any leakage, the brake system
should be inspected by a Yamaha dealer.
Brake operation
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, in-
spect the brake pads for wear. (See page 8-101.)
WARNING
_ Always check the brakes at the start of every
ride. Do not ride the ATV if you find any prob-
lem with the brakes or you could lose braking
ability, which could lead to an accident. If a
problem cannot be corrected by the adjust-
ment procedures provided in this manual,
have a Yamaha dealer check for the cause. _
U2C660.book Page 9 Monday, April 11, 2005 10:29 AM

8-101 1. Brake pad a. Brake pad thickness
1. Plaquette de frein a.Épaisseur de plaquette de frein
1. Pastilla del freno a. Espesor de la pastilla del freno
1. Brake pad 2. Brake pad plate
a. Brake pad thickness
1. Plaquette de frein 2. Support de plaquette de frein
a.Épaisseur de plaquette de frein
1. Pastilla del freno 2. Placa de la pastilla del freno
a. Espesor de la pastilla del freno
EBU13770
Front brake pad check
Check the brake pads for damage and wear. If a
brake pad thickness is less than 1 mm, have a
Yamaha dealer replace the pads as a set.NOTE:_ The wheels need to be removed to check the
brake pads. (See pages 8-123–8-125 for removal
and installation procedures.)
EBU08781
Checking the rear brake pads
Check the brake pads for damage and wear. If the
thickness is less than 1 mm, have a Yamaha deal-
er replace the pads.
U2C660.book Page 101 Monday, April 11, 2005 10:29 AM

8-103 1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimo
FRONT
Avant
Delantero1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimoREAR
Arrière
Trasero
EBU08751
Checking the brake fluid level
Insufficient brake fluid may let air enter the brake
system, possibly causing the brakes to become in-
effective.
Before riding, check that the brake fluid is above
the minimum level and replenish when necessary.
A low brake fluid level may indicate worn brake
pads and/or brake system leakage. If the brake flu-
id level is low, be sure to check the brake pads for
wear and the brake system for leakage. The rear
brake fluid master cylinder reservoir is located be-
hind panel B. (See page 8-23 for panel removal
and installation procedures.)
Observe these precautions:

When checking the fluid level, make sure the
top of the master cylinder reservoirs are level.


Use only the designated quality brake fluid, oth-
erwise the rubber seals may deteriorate, caus-
ing leakage and poor brake performance.
Recommended brake fluid: DOT 4
U2C660.book Page 103 Monday, April 11, 2005 10:29 AM