Periodic maintenance and adjustment
7-20
7
Use only the recommended quali-
ty brake fluid, otherwise the rub-
ber seals may deteriorate, causing
leakage and poor braking perfor-
mance.
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
Be careful that water does not en-
ter the master cylinder when refill-
ing. Water will significantly lower
the boiling point of the fluid and
may result in vapor lock.
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22725
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the oil seals
of the brake master cylinder and cali-
per as well as the brake hose replaced
at the intervals listed below or whenev-
er they are damaged or leaking.
Brake seals: Replace every two
years.
Brake hose: Replace every four
years.
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU47684
To check the drive chain slack
1. Place the motorcycle on the cen-
terstand.
2. Shift the transmission into the
neutral position.
3. Remove the drive chain slack
check hole cap.
4. Measure the drive chain slack as
shown.
Recommended brake fluid:
YAMAHA GENUINE BRAKE FLUID
or equivalent DOT3 or DOT4
1. Drive chain slack
Drive chain slack:
25.0–35.0 mm (0.98–1.38 in)
1
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