2003 YAMAHA GRIZZLY 660 brakes

7-79

If your ATV encounters shallow water: Ride
slowly and carefully through slow moving wa-
ter, watching for obstacles. Be sure to let water
drain from the ATV and CHECK YOUR
BRAKES FOR PROPER OPERATION when
you come out of the water. Do not continue to
ride your ATV until you have regained ade-
quate braking ability. (See pages 7-63–7-67.)
U5KM61.book Page 79 Friday, July 26, 2002 11:13 AM

8-95 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
EBU00875
Inspecting 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 lower level and replenish when necessary. The
rear brake fluid master cylinder reservoir is located
behind panel B. (See page 8-21 for panel removal
and installation procedures.)
Observe these precautions:
1. When checking the fluid level, make sure the
top of the master cylinder reservoir is level by
turning the handlebars.
2. Use only the designated quality brake fluid.
Otherwise, the rubber seals may deteriorate,
causing leakage and poor brake perfor-
mance.
Recommended brake fluid: DOT 4
U5KM61.book Page 95 Friday, July 26, 2002 11:13 AM

8-101 a. Free play
a. Jeu
a. Juego libre
EBU01190
Front brake lever free play
The front brake lever should have a free play of
zero mm at the lever end. If not, have a Yamaha
dealer adjust it.
WARNING
_ Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:

Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
_
U5KM61.book Page 101 Friday, July 26, 2002 11:13 AM

8-105 a. 72 mm
Rear brake pedal height adjustmentNOTE:_ Adjust the rear brake before inspecting the rear
brake pads. _The top of the brake pedal should be positioned
72 mm above the top of the footrest. If not, ask a
Yamaha dealer to adjust it.
WARNING
_ Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:

Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


All air must be bled from the brake sys-
tem.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
_
U5KM61.book Page 105 Friday, July 26, 2002 11:13 AM

9-3
CAUTION:
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical de-
vices. Many expensive repair bills have result-
ed from improper high pressure detergent
applications such as those available in coin-
operated car washers.4. Once the majority of the dirt has been hosed
off, wash all surfaces with warm water and
mild, detergent-type soap. An old toothbrush
or bottle brush is handy for hard-to-get-at
places.
5. Rinse the machine off immediately with clean
water and dry all surfaces with a chamois,
clean towel or soft absorbent cloth.
6. Clean the seat with a vinyl upholstery cleaner
to keep the cover pliable and glossy.
U5KM61.book Page 3 Friday, July 26, 2002 11:13 AM

9-5
7. Automotive type wax may be applied to all
painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish.
When finished, start the engine and let it idle
for several minutes.
WARNING
Wet brakes may have reduced stopping ability,
increasing the chance of an accident. Test the
brakes after washing. Apply the brakes several
times at slow speeds to let friction dry out the
linings.
U5KM61.book Page 5 Friday, July 26, 2002 11:13 AM