Adjusting The Drive Chain Slack - Yamaha TW125 1999 Service Manual

BLEEDING THE HYDRAULIC BRAKE SYSTEM/

ADJUSTING THE DRIVE CHAIN SLACK

1. Bleed:
S hydraulic brake system
a. Add the recommended brake fluid to the
proper level.
b. Install the brake master cylinder reservoir di-
aphragm.
c. Connect a clear plastic hose 1 tightly to the
bleed screw 2 .
d. Place the other end of the hose into a con-
tainer.
e. Slowly squeeze the brake lever several
times.
f. Fully squeeze the brake lever without releas-
ing it.
g. Loosen the bleed screw.
This will release the tension and cause the
brake lever to contact the throttle grip.
h. Tighten the bleed screw and then release the
brake lever.
i. Repeat steps (e) to (h) until all of the air
bubbles have disappeared from the brake
fluid in the plastic hose.
j. Tighten the bleed screw to specification.
Bleed screw
6 Nm (0.6 mSkg)
k. Fill the reservoir to the proper level.
Refer to "CHECKING THE BRAKE FLUID
LEVEL".
WARNING
After bleeding the hydraulic brake system,
check the brake operation.
56EAS00141
ADJUSTING THE DRIVE CHAIN SLACK
NOTE:
The drive chain slack must be checked at the
tightest point on the chain.
CAUTION:
A drive chain that is too tight will overload
the engine and other vital parts, and one that
is too loose can skip and damage the swin-
garm or cause an accident. Therefore, keep
the drive chain slack within the specified
limits.
3-24
CHK
ADJ