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5-7E
Clutch new used
Balancing the clutch wear
– Check clutch shoes for wear; if the lining only shows minor signs of
wear, the linings can be reinstalled.
NOTE:
– the centrifugal clutch has an outer diameter of approx. 82.5 mm
(3.248 in) when new.
– to compensate for minor wear in the lining, one of the preload
washers
6 from any set of springs can be inserted between the
clutch hub and clutch shoes - see Fig.
B. If only one washer is
installed, this washer can be used.
– the inner diameter of the clutch drum must not exceed 84.4 mm
(3.3228 in) (new condition 84.0 mm [3.3071 in]).
– Make sure the spring sets are kept free of contamination during
maintenance and repair work to the clutch, otherwise they may
malfunction.
Assembly is in the reverse order as disassembly. HH bolts
1 must be
secured with Loctite 243 and tightened to 12 Nm (9 ft.lb).
Overhauling the centrifugal clutch
– Loosen HH bolts 1 on the clutch shoes 2 and remove together with
the set of springs
3 from the clutch hub 4.
NOTE: coilsprings
7 are used instead of the spring washers for the
AC-engine. Length of clutch springs: min. 19.6 mm (0.748 in).
– Remove HH bolts with sleeves and set of springs from the clutch
shoes.
NOTE:
– the set of springs consists of 14 spring washers
5, make sure the
spring washers are placed exactly in the same order
A shown below
(only LC-engine).
– Washers
6 to pretension the spring sets are located between the
spring sets and the clutch shoes. The preload on the spring set has
an influence on the clutch engagement speed. 0.5 mm more preload
increases the clutch speed by approx. 500 rpm.
– the clutch speed is the speed at which the clutch begins to engage
and the motorcycle begins to move.
– check the clutch speed with the tachometer 451.29.075.000 and
adjust if necessary:
AC-engine: 4000 - 4500 rpm
LC-engine: 8500 - 9000 rpm