Page 79 of 111

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU01251
Drive chain slack adjustment1. Loosen the axle nut.
2. Loosen the locknuts on each side.
To tighten the chain, turn the chain
adjusting bolts in direction
a. To
loosen the chain, turn the adjust-
ing bolts in direction
b and push
the wheel forward. Turn each ad-
justing bolt exactly the same
amount to maintain correct axle
alignment. There are marks on
each side of the swingarm. Use
these marks to align the rear
wheel.
EC000096
CAUTION:@ Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits. @3. After adjusting, tighten the lock-
nuts. Then tighten the axle nut to
the specified torque.
EAU03006
Drive chain lubricationThe chain consists of many parts which
work with each other. If the chain is not
maintained properly, it will wear out
quickly. Therefore, the chain must be
serviced regularly. This service is es-
pecially necessary when riding in dusty
areas. This motorcycle is equipped
with a sealed type chain. Steam clean-
ing, high-pressure washers, and sol-
vents can damage the drive chain, so
do not use these for cleaning it. Use
only kerosene to clean the drive chain.
Wipe it dry, and thoroughly lubricate it
with SAE 30 ~ 50W motor oil. Do not
use any other lubricants on the drive
chain. They may contain solvents that
could damage the sealed chain.
EC000097
CAUTION:@ Be sure to oil the chain after wash-
ing the motorcycle or riding in the
rain. @
1. Axle nut
2. Adjusting bolt
3. Locknut
4. Alignment marks
Tightening torque:
Axle nut:
150 Nm (15.0 m·kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6 3. Elevate the front wheel.
4. Remove the brake hose holders
and calipers.
NOTE:@ Do not depress the brake lever when
the calipers are off the discs as the
brake pads will be forced shut. @5. Pull out the wheel axle and re-
move the wheel by pulling it back-
wards.
EAU01638
Front wheel installation1. Lift up the wheel between the front
fork legs.
2. Install the wheel axle and let the
motorcycle down.
3. Push down hard on the handle-
bars several times to check for
proper fork operation.
4. Install the calipers, caliper bolts
and brake hose holders. Make
sure there is enough gap between
the brake pads before installing
the calipers onto the brake discs.
5. Tighten the wheel axle, pinch bolt
and caliper bolts to the specified
torques.
1. Brake hose holder bolt
2. Caliper bolt (´ 2)
Tightening torque:
Wheel axle:
72 Nm (7.2 m·kg)
Pinch bolt:
20 Nm (2.0 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU01246
Rear wheel installation1. Install the wheel assembly and in-
sert the axle.
2. Install and adjust the drive chain.
(See page 6-28 for details about
adjusting the drive chain slack.)
3. Install the axle nut and let the
motorcycle down.
4. Install the caliper and caliper bolts.
Make sure there is enough gap
between the brake pads before in-
stalling the caliper onto the brake
disc.
5. Tighten the axle nut and caliper
bolts to the specified torques.
EAU01008
TroubleshootingAlthough Yamaha motorcycles receive
a rigid inspection before shipment from
the factory, trouble may occur during
operation.
Any problem in the fuel, compression,
or ignition systems can cause poor
starting and loss of power. The trouble-
shooting chart describes a quick, easy
procedure for making checks.
If your motorcycle requires any repair,
bring it to a Yamaha dealer. The skilled
technicians at a Yamaha dealership
have the tools, experience, and know-
how to properly service your motor-
cycle. Use only genuine Yamaha parts
on your motorcycle. Imitation parts may
look like Yamaha parts, but they are of-
ten inferior. Consequently, they have a
shorter service life and can lead to ex-
pensive repair bills. Tightening torque:
Axle nut:
150 Nm (15.0 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
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