INSTRUMENT AND CONTROL FUNCTIONS
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To close the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock.
2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.
TIP
The fuel tank cap cannot be closed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly closed and locked.
EWA11091
WARNING0
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13221
Fuel
Make sure there is sufficient gasoline
in the tank.
EWA10881
WARNING0
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is
sitting on the vehicle. Never refuel
while smoking, or while in the
vicinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank
filler hole. Stop filling when the fu-
el reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine
or the sun can cause fuel to spill
out of the fuel tank.
1. Fuel tank filler tube
2. Fuel level
3. Wipe up any spilled fuel immedi-
ately. NOTICE:Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plas-
tic parts.
4. Be sure to securely close the fuel
tank cap.
EWA15151
WARNING0
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swal-
low some gasoline or inhale a lot of
gasoline vapor, or get some gaso-
line in your eyes, see your doctor
immediately. If gasoline spills on
XT660Z 04-04 ING-AUS:MY03 01-03 ING 11-05-2009 9:54 Pagina 4-12
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-39
TIP
●Make sure that the slot in the
brake caliper bracket is fit over the
retainer on the swingarm.
●Make sure that there is enough
space between the brake pads
before installing the wheel.
2. Install the drive chain onto the
rear sprocket.
3. Install the axle nut, and then low-
er the rear wheel so that it is on
the ground.
4. Adjust the drive chain slack. (See
page 7-24.)
5. Apply the rear brake several
times, and then tighten the axle
nut to the specified torque.
Tightening torque:
Axle nut:
105 Nm (10.5 m·kgf, 75 ft·lbf)
EAU25871
Troubleshooting
Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during 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
inferior, have a shorter service life and
can lead to expensive repair bills.
EWA15141
WARNING0
When checking the fuel system, do
not smoke, and make sure there
are no open flames or sparks in the
area, including pilot lights from wa-
ter heaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
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