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PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6
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.
EAU34315
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
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
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.3. Tighten the axle nut, then the lock-
nuts to their specified torques.
1. Drive chain slack
1
Drive chain slack:
20.0–30.0 mm (0.79–1.18 in)
1. Locknut
2. Drive chain slack adjusting bolt
3. Axle nut
4. Alignment marks
5. Drive chain pullerTightening torques:
Axle nut:
150 Nm (15 m·kgf, 108 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U5WME7E0.book Page 21 Monday, November 16, 2009 9:09 AM
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6
EAU24360
Front wheel
EAU38891
To remove the front wheel
WARNING
EWA10821
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Place the motorcycle on the cen-
terstand.
2. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.3. Remove the brake hose holder on
each side by removing the bolt.
4. Remove the brake caliper on each
side by removing the bolts.
NOTICE: Do not apply the brake
after the brake calipers have
been removed, otherwise the
brake pads will be forced shut.
[ECA11051]
5. Pull the wheel axle out, and then
remove the wheel.
EAU33661
To install the front wheel
1. Lift the wheel up between the fork
legs.2. Insert the wheel axle.
3. Install the brake calipers by install-
ing the bolts.
TIPMake sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs.4. Install the brake hose holders by
installing the bolts.
5. Lower the front wheel so that it is
on the ground, and then put the
sidestand down.
6. Tighten the wheel axle, the front
wheel axle pinch bolt and the
brake caliper bolts to the specified
torques.
7. Push down hard on the handlebar
several times to check for proper
fork operation.
1. Brake caliper bolt
2. Front wheel axle pinch bolt
3. Wheel axle
3
2 1
1. Brake caliper bolt
2. Brake hose holder
3. Brake caliper
4. Bolt
Tightening torques:
Wheel axle:
72 Nm (7.2 m·kgf, 52 ft·lbf)
Front wheel axle pinch bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)
U5WME7E0.book Page 33 Monday, November 16, 2009 9:09 AM
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
6
EAU25080
Rear wheel
EAU25162
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
caliper bolts.
2. Disconnect the brake torque rod
from the brake caliper bracket by
removing the nut and the bolt.3. Place the motorcycle on the cen-
terstand.
4. Remove the axle nut and the brake
caliper by removing the bolts.
NOTICE: Do not apply the brake
after the brake caliper has been
removed, otherwise the brake
pads will be forced shut.
[ECA11301]
5. Loosen the locknuts, and then turn
the drive chain slack adjusting bolt
on each side of the swingarm fully
in direction (a).6. 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 rear wheel.7. While supporting the wheel and
the brake caliper bracket, pull the
wheel axle out.
8. Remove the brake caliper bracket
and the wheel.
1. Axle nut
2. Brake caliper bolt
12
1. Brake caliper bolt
2. Brake torque rod
3. Bolt
4. Brake caliper bracket
5. Brake caliper
6. Nut
1. Wheel axle
2. Drive chain slack adjusting bolt
3. Locknut
123
(a)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-35
6
EAU25842
To install the rear wheel
1. Place the wheel and the brake cal-
iper bracket in the original position.
2. Insert the wheel axle through the
brake caliper bracket and wheel
from the right-hand side, and then
install the axle nut.
3. Install the drive chain onto the rear
sprocket, and then adjust the drive
chain slack. (See page 6-21.)
4. Connect the brake torque rod to
the brake caliper bracket by install-
ing the bolt and the nut.
5. Install the brake caliper by install-
ing the bolts.TIPMake sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brake
disc.6. Lower the rear wheel so that it is
on the ground, and then put the
sidestand down.
7. Tighten the axle nut, brake caliper
bolts and brake torque rod nut to
the specified torques.
EAU25851
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from water
Tightening torques:
Axle nut:
150 Nm (15 m·kgf, 108 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)
Brake torque rod nut:
23 Nm (2.3 m·kgf, 17 ft·lbf)
U5WME7E0.book Page 35 Monday, November 16, 2009 9:09 AM