Changing The Brake Fluid; Drive Chain Slack - Yamaha YZF-R1 Owner's Manual

Changing the brake fluid

Have a Yamaha dealer change the
brake fluid at the intervals specified in
the NOTE after the periodic mainte-
nance and lubrication chart. In addition,
have the oil seals of the master cylin-
ders and calipers as well as the brake
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.
G Oil seals: Replace every two
years.
G
Brake hoses: Replace every four
years.
PERIODIC MAINTENANCE AND MINOR REPAIR
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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. Place the motorcycle on a level
surface and hold it in an upright po-
sition.
NOTE:
When checking and adjusting the drive
chain slack, the motorcycle should be
positioned straight up and there should
be no weight on it.
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:
20.0–25.0 mm (0.79–0.98 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
6-23
adjust it as follows.
nut on each side of the swingarm.
adjusting bolt on each side of the
swingarm in direction (a). To loos-
en the drive chain, turn the adjust-
ing bolt on each side of the
swingarm in direction (b), and then
push the rear wheel forward.
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