PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
1
2
3
4
5
6
7
8
9
10
11
12
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 does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
NOTICE
ECA17641
Brake fluid may damage painted sur-
faces or plastic parts. Always clean
up spilled fluid immediately.
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 sys-
tem leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAU52953
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 master cylinders and calipers as
well as the brake hoses replaced every
20000 km (12000 mi) or every two
years or whenever they are damaged
or leaking.
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU52481
To check the drive chain slack
1. Place the motorcycle on the sides-
tand.
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. Pull the drive chain up above the
drive chain guard installation bolt
with a force of 50 N (5.0 kgf, 11
lbf).
4. Measure drive chain slack be-
tween the drive chain guard and
the bottom of the chain as shown.
Drive chain slack:
48.0–58.0 mm (1.89–2.28 in)
1DX-9-E3.book 25 ページ ２０１４年２月１７日 月曜日 午後２時２１分
