Fuel Cock; Tires And Wheels; Rear Wheel - Yamaha XT550J Service Manual

1. Raise the front end of the motorcycle,
and spin the wheel by hand. Touch the
axle or front fender while spinning the
wheel. If you feel any excessive vibra-
tion, the bearings are rough and should
be replaced.
Rear wheel
1.
Remove the rear wheel, and check the
bearing movement with your finger.
Replace the bearings if they are rough or
worn.
K. Fuel Cock
If either fuel cock is leaking or is excessively
contaminated, it should be removed from the
fuel tan k and inspected.
O-RING
FILTER SCREEN
O-RING
~
PLATE
~ ~
LEVER
~DRAI:::REW ~
L...-_ _ _ _ _ _ _ _ _ _ _ _ _ _
--...J2-15
1. Remove the fuel tank and position it so
that fuel will not spill when the fuel cock
is removed.
2. Remove the fuel cock and inspect the
filter screen. Replace the fuel cock
assembly if it is seriously contaminated.
3.
Remove the screws on the front and rear
of the fuel cock; remove the plate,
gaskets, lever, and O-rings.
4. Inspect all components, and replace any
that are damaged. If the O-rings are
damaged in any way or if the fuel cock
gasket surfaces are scratched or corrod-
ed, the fuel cock assembly must be
replaced. If there is abrasive damage to
any components, the fuel tank must be
drained and flushed.
5. Reassemble the fuel cock, and install it
on the fuel tank.
l. Tires and Wheels
To insure maximum performance, long ser-
vice, and safe operation, note the following
precautions:
1. Check tire pressure before riding; adjust
as necessary.
2. Before operation, always check the tire
surfaces for wear and/or damage; look
for cracks, glass, nails, metal fragments,
stones, etc. Correct any such hazard
before riding.
3. Always inspect the wheels before a ride.
Place the motorcycle on the sidestand
and check for cracks, bends, or warpage
of the wheels. Do not attempt even
small repairs to the wheel. If a wheel is
deformed or cracked, it must be replac-
ed.
4. After installing a tire, ride conservatively
to allow the tire to seat itself on the rim
properly. Failure to allow proper seating
may cause tire failure resulting in
damage to the motorcycle and injury to
the rider.
5. After repairing or replacing a tire, check
to be sure the bead stopper locknut is
securely fastened. If not, torque it as
specified.
TIGHTENING TORQUE:
10 Nm (Lam 'kg, 7.2ft·lb)