English – 27
Centrifugal clutch
10.1.2 Cleaning and inspection
Clean all components and check the following:
1. The lining thickness on the clutch shoes must
not be less than 3.5 mm at the most worn point.
See fig. 5. To avoid imbalance all the clutch
shoes should be replaced at the same time.
2. There should be no play between the clutch
shoes and the clutch hub.
3. Wear on the chain drive sprocket.
4. The needle bearing should be in good condition
and the journal surface on the crankshaft
undamaged.
5. The friction surface on the clutch drum should
be intact and the bearing surface undamaged.
10.1.3 Assembly
When assembling the centrifugal clutch the chain
brake must be in the off position.
1. Fit the clutch shoes on the hub and fit the
springs with circlip pliers. See fig. 4.
2. Fit the clutch hub on the crankshaft and tighten
with the clutch tool. Note – left-hand thread! See
fig. 6.
3. Remove the piston stop and fit the spark plug
and put on the ignition cable.
4. Grease in the needle bearing before fitting. Fit
the clutch drum (C) with needle bearing (D) and
chain drive sprocket (E). See fig. 2 page 24.
5. Fit the washer and locking ring (B). See fig. 2.
6. Fit the cylinder cover, chain and bar. See
Operator Guide.
NOTE!
The clutch springs must not opened
more than is necessary. Risk of deforma-
tion.
Fig. 5
Fig. 6
min 3.5 mm
