CENTRIFUGAL CLUTCH
English – 27
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.
When assembling the centrifugal clutch the chain brake must
be in the off position.
Assembly
Fig. 5
Fig. 6
NOTE!
The clutch springs must not opened more
than is necessary. Risk of deformation.
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 page 24.
6. Fit the cylinder cover, chain and bar. See Operator Guide.
min 3.5 mm
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