Yamaha TT-R125LE, Owner'S Manual

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PERIODIC MAINTENANCE AND ADJUSTMENT
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7
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Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the brake master cylin-
der and caliper as well as the brake
hose replaced at the intervals listed be-
low or whenever they are damaged or
leaking.
● Oil seals: Replace every two
years.
● Brake hose: Replace every four
years.
EAU22760
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22774
To check the drive chain slack
1. Place the motorcycle on the side-
stand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into the neu-
tral position.
3. Measure the drive chain slack as
shown.
4. If the drive chain slack is incorrect,
adjust it as follows.
EAUW0662
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the brake pedal free play
adjusting nut.
2. Loosen the axle nut.
3. To tighten the drive chain, turn the
drive chain slack adjusting plate on
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting plate on each
side of the swingarm in direction
(b), and then push the rear wheel
forward.
NOTICE: Improper drive
Drive chain slack:
45.0–60.0 mm (1.77–2.36 in)
1. Drive chain slack
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