Checking The Ignition Timing; Cooling System - Gilera 2008 MSS Nexus User Manual

Maintenance

Checking the ignition timing

- Remove the plastic cap on the flywheel cover
-Turn the flywheel until the reference mark «T» on
the rotor matches the reference mark on the fly-
wheel cover as shown in the figure (TDC). Make
sure that the 4V reference point on the camshaft
control pulley is aligned with the reference point on
the head as shown in the second figure. If the ref-
erence is opposite the indicator on the head, turn
the crankshaft once more.
For the use of this reference mark, remove the
spark plug and turn the engine in the direction that
is the reverse of the normal direction using a cal-
liper spanner applied to the camshaft command
pulley casing.

Cooling system

If noise or liquid leaks through the drain bore of the water pump is detected, it will be necessary to
replace the pump as described in the «Flywheel cover» Chapter.
Proceed to carry out a few preliminary operations as described below:
- Place the vehicle on its centre stand and on flat ground.
- Empty the cooling system by removing the couplings on the pump cover and the filler plug on the
expansion tank.
CAUTION
THIS OPERATION MUST BE CARRIED OUT WHEN THE ENGINE IS COLD.
- Remove the water pump cover as indicated in the
figure by loosening the 3 fixing screws.
- Proceeding as described in chapter «Engine»,
partially drain the system and overhaul the pump.
- Refill and drain the system again once after hav-
ing repaired the damaged and reinstalled all the
components.
N.B.
FOR CHANGING THE COOLANT AND BLEEDING THE
SYSTEM, SEE CHAPTER "COOLING SYSTEM".
Characteristic
MAIN - 48
MSS Nexus 300 i.e. E3 ( 2008)