2001 YAMAHA YFM400F brakes

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If your ATV encounters shallow water:
Ride slowly and carefully through slow
moving water, watching for obstacles. Be
sure to let water drain from the ATV and
CHECK YOUR BRAKES FOR PROPER OPER-
ATION when you come out of the water. Do
not continue to ride your ATV until you have
regained adequate braking ability. (See
pages 7-63 ~ 7-67.)

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Inspecting the brake fluid level
Insufficient brake fluid may let air enter the
brake system, possibly causing the brakes to
become ineffective.
Before riding, check that the brake fluid is
above the lower level and replenish when nec-
essary. The rear brake fluid master cylinder
reservoir is located under panel C. (See pages
8-23 ~ 8-25 for removal and installation proce-
dures.)
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 flu-
id. Otherwise, the rubber seals may dete-
riorate, causing leakage and poor brake
performance.
Recommended brake fluid: DOT 4
1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimoFRONT
Avant
Delantero1. Maximum level mark
1. Repère de niveau maximum
1. Marca de nivel máximoREAR
Arrière
Trasero

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Front brake adjustment
The front brake lever should have a free play of
zero mm at the lever end. 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:l
Make sure the brakes operate smoothly
and that the free play is correct.
l
Make sure the brakes do not drag.
l
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.
a. Free play
a. Jeu
a. Juego libre

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WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:l
Make sure the brakes operate smoothly
and that the free play is correct.
l
Make sure the brakes do not drag.
l
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.

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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.

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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 protective finish.
When finished, start the engine and let it
idle for several minutes.
WARNING

Wet brakes may have reduced stopping abili-
ty, 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.