Yamaha pw80 - Manual (Page 45)

3. Tighten the axle nut and tension bar
nut.
Axle nut torque:
60 Nm (6.0 m*kg, 43 ft»lb)
Tension bar nut:
16 Nm (1.6 m*kg, 11 ft*lb)
4. Insert the new cotter pin into the ten­
sion bar bolt.
A
WARNING
Always use a new cotter pin.
5. Bend the end of the cotter pin.
BRAKE SHOE INSPECTION
Measure the outside diameter of the brake shoe
set with slide calipers.
If they measure less than replacement limit,
replace them. Smooth out any rough spots on
shoe surface with sandpaper.
Brake shoe diameter
Replacement limit
Front
95 mm
(3.74 in)
92 mm
(3.62 in)
Rear
110 mm
(4.33 in)
107 mm
(4.21 in)
BRAKE DRUM INSPECTION
Check the inner surface of the brake drum and
remove any scratches with emery cloth.
Remove any oil with a cloth dipped in solvent.
If damage is more extensive, have a Yamaha
dealer or other qualified mechanic replace the
wheel hub.
TIRE
Removal and repair
1. Remove the wheel from the machine.
2. Remove the lock nut from valve stem and
release as much air as possible from the
tire.
3. Push both tire beads away from the edges
of the rim.
4. Starting opposite the valve stem on one
side, use two round-ended tire irons to
work the bead off the rim.
NOTE: ____ _____________________
Use a tire removal lubricant and be careful not
to pinch the tube vyith the tire irons.
5. Remove the valve stem from its hole and
remove the tube.
6. If the tire is to be changed, remove the
second bead from the rim using the tire
irons and tire lubricant.
Inspection
1. Use a cloth to check for nails or other
sharp objects in the tire.
CAUTION: _____________________
Always use a cloth to avoid cutting your
hand.
2. Check for faults in the side wall. If there
is any fault, the tire should be replaced
as a damaged tire may burst at high
speeds, which is extremely dangerous.
3. Inflate the tube with air and check the
valve stem and the tube for damage and
leakage, replace as required. Some leaks
can be patched in an emergency, but it
is best to replace tube.
Reassembly
1. Install one tire bead on the rim using tire
irons and lubricant and then install the
tube.
2. Inflate tube with air to about one-third the
specified pressure. Hit the outer cir­
cumference of the tire with a soft ham­
mer to make certain the tube is hot caught
between tire and rim. Release air from
tube.
Inspect rim band and replace if damaged.
Install second tire bead starting opposite
the valve stem using the irons and tire
mounting lubricant.
Inflate tire to approximately 294 kPa (3
kgf/cm^, 42 psi) and then reduce pres­
sure to specified setting.
3.
4.
5.
-33-