Gilera Nexus 500, Workshop Manual, Page: 45 / 406

Oil pressure warning light
Warning light (low oil pressure)
The vehicle is equipped with a warning light on the
instrument panel that lights up when the key is
turned to the " ON " position. However, this light
should switch off once the engine has been star-
ted.
If the light comes on during braking, at idling
speed or while turning, it is necessary to first
switch off the engine and then to check the oil
level and the lubrication system
Checking the valve clearance
- To check the clearance in the valves collimate
the references between the cam shaft control pul-
ley and head.
- Use a feeler to make sure the clearance between
the valve and register screw correspond to the in-
dicated values. If the clearance does not corre-
spond, adjust it by loosening the counternut using
a screwdriver on the register screw as shown in
the figure.
Characteristic
Valve clearance: intake:
0.15 mm (when cold)
Valve clearance: exhaust
0.15 mm (when cold)
Cooling system
If noise or loss of liquid at the drain bore of the water pump is discovered, it will be necessary to overhaul
the pump as described in chapter "Flywheel cover".
Proceed to carry out a few preliminary operations as described below:
- Place the scooter on its centre stand and on flat ground.
- Remove the right footrest as described in the «Bodywork» Chapter.
- Remove the muffler to access the flywheel cover, as described in the «Engine» Chapter.
- Empty the cooling system by removing the couplings on the pump cover and the filler plug on the
expansion tank.
Nexus 500
Maintenance
MAIN - 13