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3. Lift the rear wheel off the ground
according to the procedure on
page 6-34.
4. Remove the axle nut.
5. Loosen the locknut on each side of
the swingarm.
6. Turn the drive chain slack adjust-
ing bolts fully in direction (a).
7. Push the wheel forward, tighten
the caliper bracket bolt, and then
remove the drive chain from the
rear sprocket.
NOTE:
The drive chain does not need to be
disassembled in order to remove and
install the rear wheel.
8. Pull the wheel axle out, and thenremove the wheel.
CAUTION:
ECA11510
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake caliper pistons will be forced
out.
EAU25681
To install the rear wheel
1. Install the wheel by inserting the
wheel axle from the right hand
side.
NOTE:
Make sure that there is enough space
between the brake pads before install-
ing the wheel.
2. Install the drive chain onto the rear
sprocket.
3. Loosen the brake caliper bracket
bolt.
4. Adjust the drive chain slack. (See
page 6-24.)
5. Install the axle nut, and then lower
the rear wheel so that it is on the
ground.6. Tighten the axle nut and the brake
caliper bracket bolt to the specified
torques.
7. Install the drive chain cover by in-
stalling the bolts and quick fasten-
ers.
NOTE:
To install a quick fastener, push the pin
Tightening torques:
Axle nut:
150 Nm (15.0 m·kgf,
108.5 ft·lbf)
Brake caliper bracket bolt:
40 Nm (4.0 m·kgf, 29.0 ft·lbf)
1. Quick fastener (after removal)
2. Quick fastener (before installation)
12
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back so that it will protrude from the fas-
tener head, and then insert the fastener
and push the protruding pin in until it is
flush with the fastener head.
EAU25870
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 charts
represent quick and easy procedures
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.
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EAU25911
Troubleshooting charts
Starting problems or poor engine
performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
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9 Engine overheating
WARNING
EWA10400
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hissing
sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
