Gilera Nexus 500 Workshop Manual page 105

Nexus 500
Engine
- Loosen the two retaining screws and remove the
reed valve support with bulkhead.
- Remove the blow-by reed valve with the relevant
sealing gasket.
- Unscrew the fastening screw and remove the gas
outlet union with the relevant O-ring.
- Remove the water pump impeller by unscrewing
it from the relevant shaft.
N.B.
THE THREADING IS CLOCKWISE. IT IS ADVISABLE TO
PREVENT THE SHAFT ROTATION BY INSERTING A 12-MM
WRENCH INTO THE DRIVE.
ENG - 105