APRILIA SHIVER 900 Service Station Manual page 73

SHIVER 900
Exhaust valve clearance
0.15 - 0.20 mm (0.0059 - 0.0078 in)
If the valve clearance is out of tolerance, carry
out the adjustment procedure, as follows:
•
Position the front cylinder at TDC.
•
Remove the cam tower by unscrewing
and removing the 8 fastening screws in
the order indicated on the cam tower
itself.
•
Secure the cam shafts in position using
the dedicated timing pins.
Specific tooling
020719Y Timing pin
•
Remove one cam shaft at a time
•
leave the other camshaft in position
and secured by the timing pin.
CAUTION
IF BOTH CAMSHAFTS ARE REMOVED AT THE SAME
TIME, THE ENGINE COULD ROTATE, RENDERING IT NEC-
ESSARY TO RETIME IT.
Maintenance
MAIN - 73