Changing The Brake Fluid; Drive Chain Slack - Yamaha YZ85 2017 Owner's Manual

Periodic maintenance and adjustment

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 at the
intervals listed below or whenever they
are damaged or leaking.
 Oil seals: Replace every two
years.
 Brake hoses: Replace every four
years.
7
EAU51721

Drive chain slack

The drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
1. Place the motorcycle on a suitable
stand. (See page 7-28.)
2. Confirm the rear wheel is off the
ground and the rear shock ab-
sorber is fully extended.
3. Shift the transmission into neutral.
4. Measure the drive chain slack as
shown.
1. Drive chain slack
Drive chain slack:
35.0–45.0 mm (1.38–1.77 in)
5. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. To prevent
this from occurring, keep the
drive chain slack within the
specified limits.
7-21
EAU22762
EAU41415
[ECA10572]