Drive chain slack check
Spin the wheel several times and
find the tightest position of the chain.
Check and/or adjust the chain slack
while it's in this tightest position.
Inspect the drive chain when the
Motorcycle is on the centerstand.
Check the slack at the position
shown in the illustration. Normal
slack is approximately 20 ~ 30 mm.
If the slack exceeds 30 mm, adjust.
20~30
mm
6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
Observe these precautions :
• When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.
• Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
l e a k a g e
a n d
p o o r
b r a k i n g
performance
• Be careful that water does not enter
the brake fluid reservoir when
refilling.
Water will significantly
lower the boiling point of the fluid
and may result in vapour lock.
• Brake fluid may deteriorate painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
• As the brake pads wear, it is normal
• Refill with the same type of brake
fluid. Mixing fluids may result in
a harmful chemical reaction and
l e a d
t o
p o o r
b r a k i n g
performance.
or the brake fluid level to gradually
go down, However, if the brake fluid
level goes down suddenly, have
YAMAHA dealer check the cause.
Have a YAMAHA dealer check the
brake fluid at the intervals specified in
the periodic maintenance.
In
addition, have the oil seals of the
brake master cylinder and caliper as
well as the brake hose replaced at the
intervals listed below or
Changing the brake fluid
whenever
they are damaged or leaking.
• Oil Seals : Replace every two
years.
• Brake Hose : Replace every four
years.
• Brake Fluid : Replace every two
years or in case of severe operating
conditions replace every year.
Recommended brake fluid :
DOT 3 Brake Fluid
