Changing The Brake Fluid; Drive Chain Slack - Yamaha YZ85(Z) Owner's Manual

Changing the brake fluid

Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the master cylinders and
calipers as well as the brake hoses re-
placed at the intervals listed below or
whenever they are damaged or leak-
ing.
G Oil seals: Replace every two
years.
G
Brake hoses: Replace every four
years.
PERIODIC MAINTENANCE AND ADJUSTMENT
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Drive chain slack

The drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
1. Install the removable sidestand
and place the motorcycle on it.
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. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain, and
then measure the drive chain slack
as shown.
Drive chain slack:
35.0–45.0 mm (1.38–1.77 in)
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1. Drive chain slack
4. If the drive chain slack is incorrect,
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
2. To tighten the drive chain, turn the
7-21
adjust it as follows.
nut on each side of the swingarm.
drive chain slack adjusting bolt on
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward. NOTICE: Improper drive
chain slack will overload the en-
gine as well as other vital parts
of the motorcycle and can lead
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