PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
6
EWA16031
Improper maintenance can result in
loss of braking ability or clutch oper-
ation. Observe these precautions:
Insufficient brake or clutch fluid
may allow air to enter the brake
or clutch system, reducing
braking or clutch performance.
Clean the filler caps before re-
moving. Use only DOT 4 brake
fluid from a sealed container.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water or dust
does not enter the brake or
clutch fluid reservoir when refill-
ing. Water will significantly low-
er the boiling point of the fluid
and may result in vapor lock,
and dir
t may clog th
e ABS hy-
draulic unit valves.
ECA17641
Brake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
The brake or clutch fluid reservoir dia-
phragm will lose its shape from the
negative pressure if the fluid level goes
down too far. Be sure to return the dia-
phragm to its original shape before in-
stalling it into the brake or clutch fluid
reservoir.
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. A low clutch
fluid level may indicate clutch system
leakage; therefore, be sure to check
the clutch system for leakage. If the
brake or clutch fluid level goes down
suddenly, have a Yamaha dealer check
the cause before further riding.
EAU22754
Changing the brake and
clutch fluids
Have a Yamaha dealer change the
brake and clutch fluids at the intervals
specified in the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the brake and clutch
master cylinders and calipers as well
as the brake and clutch hoses replaced
at the intervals listed below or whenev-
er they are damaged or leaking.
Oil seals: Replace every two
years.
Brake and clutch hoses: Replace
every four years.
Specified brake and clutch fluid:
DOT 4 brake fluid
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