14
WORKSHOP MANUAL
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1.4.
Clutch - assembly
Fit the oiled clutch rod with rest in the mainshaft. On the outer drum put one by one the
friction and steel discs. If we change the plates, before the assembly, measure their overall
thickness, wich should be 18,25 +/- 19 mm (5 plates). Put on pressure plate with springs and
washers over them. Compress successively the spring over washes with spanner nr. 10 and
over the washers fix the securing pins. The tightening torque of the M12x1,25 nut holding the
clutch is 35-40 Nm.
1.5
Speedometer drive and sealing
Dismount the primary gear as described under 1.3. Unscrew the M6 bolt
provided on the engine bottom and holding the speedometer drive socket and
take it out of the engine. Unscrew the grub screw from the lug provided on
engine housing inner bottom (the screw drives the speedometer). Using a
stick (preferably an aluminium one) knock the drive casing and the seal ring
into the housing space. For mounting, fit the new 8x16x7 seal ring on the
drive shaft (spring should face the engine internals), and using a suitable pipe
or socket wrench of 15 mm outer diameter tap on the drive to push it through
the housing to its seat as far as the point when groove on the drive surface is
in the line with the thread for the lock screw in the housing. Once a screw is
screwed home, drift it with centre punch