APRILIA SCARABEO 500 2008 Service Station Manual page 150

Engine
- Temporarily fit the plug for the distribution timing
check hole and the engine oil filler cap/dipstick.
- Fit the blow-by recovery duct using a new O-ring.
- Tighten the screw to the prescribed torque.
Locking torques (N*m)
Blow-by scavenge duct fixing screws 3 - 4
- Fit the spring and the by-pass piston on the fly-
wheel cover.
NOTE
LUBRICATE THE BY-PASS VALVE.
- Refit the blow-by reed valve and use a new seal-
ing gasket.
- Refit the support with bulkhead by tightening the
screws to the prescribed torque.
Locking torques (N*m)
Supporting screws with bulkhead 0.3 ÷ 0.4
- Place a new O-ring with caution so that it does
not come into contact with any grease or oil.
FAILURE TO OBSERVE THIS RULE CAN IRRE-
TRIEVABLY DEFORM THE O-RING.
- Before refitting, check that all components are perfectly clean.
- For the cover housing, carefully check all lubrication channels, especially:
- The 3 by-pass channels.
ENG - 150
SCARABEO 500