Gilera SATURNO BIALBERO 350, Workshop Manual

Page: 44 / 140

GENERATOR - TIMING BELT -
GEARBOX SELECTOR 6 - 2
REASSEMBLY
Reassemble all components in reverse order of disassembly; pay close
attention to the following:
Replace the block’s left side cover gasket and the O-ring found behind
the final drive pinion.
Mount the pinion mounting bolt spring washer, of the freewheel starter
group and generator rotor, with the convex side facing out.
The two pinion mounting bolt spring washers, found behind the generator
rotor, and the timing belt’s large guide washer must be mounted as
shown in fig. 17.
The gap between the pick-up and rotor plate must be between 0.4 and
0.5 mm.
The drum selector control device may be adjusted if necessary. Select
either 2nd, 3rd or 4th gear and verify that (in the rest position) either
extremity of the lever is at the same distance to the drum’s adjacent drag
grain. Adjustment is made by turning the cam screw (on the lever) after
having loosened the lock nut.
VALVE TIMING
Put piston at TDC (indicated by aligning the reference mark on the
generator rotor with the fixed mark, as shown in fig. 18).
Place the camshafts with their reference marks facing as shown in fig. 19.
This operation must be carried out without actuating the valves (rotate it
clockwise or counter-clockwise as necessary).
Install the timing belt and take up the slack with the tensioner pulley.
After loosening the fastening nut, the calibrated spring will set the
tensioner pulley automatically. Be sure to let the belt align on the cam
pulleys by turning the crankshaft several times prior to fastening the nut.
After having fastened the nut, make sure the pulley reference marks align
with the fixed ones.
Toprque the nut to between 28 and 30 Nm.
Always replace the timing belt according to the scheduled maintenance
(every 12,000 km).
The timing belt is never to come in contact with oil, petrol or grease and is
to be handled with clean hands only. Avoid bending or twisting the belt.
The belt must be installed by hands only, that is, do not use screwdrivers
or other tools.
6 - 2,1