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PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6
EAU22721
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 brake master cylin-
der and caliper as well as the brake
hose replaced at the intervals listed be-
low or whenever they are damaged or
leaking.
Oil seals: Replace every two
years.
Brake hose: Replace every four
years.
EAU22760
Drive chain slack The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU22793
To check the drive chain slack
1. Place the motorcycle on the cen-
terstand.
2. Shift the transmission into the neu-
tral position.
3. Spin the rear wheel several times
to locate the tightest portion of the
drive chain.
4. Measure the drive chain slack as
shown.5. If the drive chain slack is incorrect,
adjust it as follows.
EAUP0060
To adjust the drive chain slack
1. Remove the brake torque rod cot-
ter pin, and then loosen the brake
pedal free play adjusting nut,
brake torque rod nut, and axle nut.
2. Loosen the drive chain puller lock-
nut at each end of the swingarm.
1. Drive chain slack
Drive chain slack:
20.0–30.0 mm (0.79–1.18 in)1. Drive chain slack adjusting bolt
2. Drive chain puller locknut
3. Axle nut
4. Brake torque rod nut
5. Brake torque rod cotter pin
6. Brake pedal free play adjusting nut
1
2
34
5
6
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Page 53 of 80
PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6 3. To tighten the drive chain, turn the
drive chain slack adjusting bolt at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt at each end
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
to chain slippage or breakage.
To prevent this from occurring,
keep the drive chain slack with-
in the specified limits.
[ECA10571]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
4. Tighten both locknuts, and then
tighten the axle nut and brake
torque rod nut to their specified
torques.
5. Insert a new cotter pin.
6. Adjust the brake pedal free play.
(See page 6-16.)
WARNING
EWA10660
After adjusting the brake pedal free
play, check the operation of the
brake light.
1. Alignment marks
2. Drive chain puller
3. Drive chain puller locknut
4. Drive chain slack adjusting bolt
Tightening torques:
Axle nut:
80 Nm (8.0 m·kgf, 58 ft·lbf)
Brake torque rod nut:
19 Nm (1.9 m·kgf, 14 ft·lbf)
1
2
3
4
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6
TIPMake sure that there is enough space
between the brake pads before insert-
ing the brake disc and that the slot in
the speedometer gear unit fits over the
retainer on the fork leg.3. Insert the wheel axle, and then in-
stall the axle nut.
4. Take the motorcycle off the center-
stand so that the front wheel is on
the ground, and then put the side-
stand down.
5. Tighten the axle nut to the speci-
fied torque, and then install the
rubber cap so that it fits over the
washer.6. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
7. Connect the speedometer cable.
EAU25080
Rear wheel
EAU37182
To remove the rear wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the axle nut and the brake
torque rod nut at the brake shoe
plate.
2. Disconnect the brake torque rod
from the brake shoe plate by re-
moving the brake torque rod cotter
pin, the nut, and the bolt.
1. Speedometer gear unit retainer
Tightening torque:
Axle nut:
59 Nm (5.9 m·kgf, 43 ft·lbf)
U51DE0E0.book Page 33 Monday, November 2, 2009 10:34 AM
Page 66 of 80
PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
63. Place the motorcycle on the cen-
terstand.
4. Remove the brake pedal free play
adjusting nut, and then disconnect
the brake rod from the brake cam-
shaft lever.5. Loosen the drive chain puller lock-
nut and the drive chain slack ad-
justing bolt on both ends of the
swingarm.6. Remove the axle nut, and then pull
the wheel axle out.
7. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIPThe drive chain does not need to be
disassembled in order to remove and
install the wheel.8. Remove the wheel.
EAU37193
To install the rear wheel
1. Install the wheel by inserting the
wheel axle from the left-hand side.
2. Install the drive chain onto the rear
sprocket.
3. Install the axle nut.
4. Install the brake rod onto the brake
camshaft lever, and then install the
brake pedal free play adjusting nut
onto the brake rod.
5. Connect the brake torque rod to
the brake shoe plate by installing
the bolt and nut.
6. Adjust the drive chain slack. (See
page 6-20.)
1. Axle nut
2. Brake torque rod
3. Brake torque rod nut and bolt
4. Brake torque rod cotter pin
13
2
4
1. Brake pedal free play adjusting nut
2. Brake rod
3. Brake camshaft lever
1. Wheel axle
2. Drive chain puller locknut
3. Drive chain slack adjusting bolt
3
1
2
U51DE0E0.book Page 34 Monday, November 2, 2009 10:34 AM