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4.7 Align punch marks to ensure operating arm is refitted
correctly on brake camshaft
5
Adjusting the front brake
1
Adjusting the front brake is best accomplished with the
front wheel free to rotate. Spin the wheel and carefully screw
the adjusting nut down until you hear a rubbing sound which
indicates that the brake shoes are lightly in contact with the
drum surface. Turn the adjuster nut back by y - 1 turn until the
noise stops. Spin the wheel and apply the brake hard once or
twice to settle the brake. Check that the wheel is still free to
rotate and that the adjustment has remained the same. This
setting should give you 20 - 30 mm (J - 1-J inch) free play
measured at the extreme tip of the handlebar brake lever.
2
Check the condition of the brake cable ensuring that all
components are in good condition, properly lubricated and
securely fastened. Note that the operating mechanism is at its
most efficient when, with the brake correctly adjusted and
applied fully, the angle between the cable and the operating
arm on the brake backplate does not exceed 90°. This can be
6.3a Do not omit central spacer
Chapter 5 Wheels, brakes and tyres
adjusted by removing the operating arm from the brake
camshaft and rotating it by one or two splines until the angle is
correct. Ensure that all components are correctly secured on
reassembly.
6
1
any side play when fitted to the machine or any roughness, the
wheel bearings need to be renewed.
2
one of the wheel bearings and tap the bearing out of position.
Remove the central spacer and then tap out the other bearing
from the other side. Drive the bearings outwards in each case.
3
Tap in one bearing, turn the wheel over, insert the central
spacer and then tap in the other bearing. Fit each bearing with
the dust seal facing outwards and do not cut or damage it when
tapping it home.
4
dislodged. Renew it if necessary.
7
1
2
then, roll the wheel into the forks. The brake anchor slot and peg
must locate correctly.
3
it is right home. The spindle goes through the side opposite to
the brake plate.
4
Applying the front brake firmly with one hand, spin on the nut
and tighten to a torque setting of 3.5 - 5.0 kgf m (25 - 36 Ibf
ft); when tight insert a new correct-sized split pin and bend it
over.
5
6.3b Bearing sealed surface must face outwards
Front wheel bearings: removal and replacement
There are two bearings in the front wheel. If the wheel has
Using a small flat ended drift, place it inside the hub against
Use a good quality grease and grease the new bearings.
Replace the outer left-hand oil seal which will have become
Front wheel: replacement
Locate the speedometer drive tabs with the slots in the hub.
Place the spacer on the left-hand side of the wheel and
Hold the wheel in place and push the spindle through until
Reconnect the front brake cable and adjust the brake.
Locate the speedometer cable and tighten the locking nut.
83
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