Yamaha YW50P Service Manual page 57

A I R B L E E D I N G ( H Y D R A U L I C B R A K E
SYSTEIVI) I INSP
1
AIR BLEEDING (HYDRAULIC BRAKE SYSTEM)
1. Bleed:
• Brake f l u i d
Air bleeding steps:
a. A d d p r o p e r brake f l u i d to the reservoir.
b. Install the d i a p h r a g m . Be careful not to
spill a n y f l u i d or a l l o w t h e r e s e r v o i r to
o v e r f l o w .
c. C o n n e c t t h e clear plastic tu be ( ~ t i g h t l y to
the caliper bleed screw.
d. Place the o t h e r end o f t h e t u b e into a con-
tainer.
e. S l o w l y a p p l y t h e brake lever several times.
f. Pull the lever in. Hold the lever in posi-
tion.
g. Loosen the bleed s c r e w and a l l o w the le-
ver to t r a v e l t o w a r d s its limit.
h. T i g h t e n the bleed s c r e w w h e n the l i m i t
has been reached, t h e n release the lever.
i. Repeat steps ( e ) t o (h) until the air b u b b l e s
have been r e m o v e d f r o m t h e s y s t e m .
j. A d d brake f l u i d to p r o p e r level.
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Check the operation of the brake after bleed-
ing the brake system.
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