Gilera 633721 Workshop Manual page 33

Nexus 500 euro 3
- Disconnect the shielded spark plug cap
- Unscrew the spark plug.
- Check the conditions of the spark plug, make sure the insulation is intact, that the electrodes are not
excessively worn or grimy, the conditions of the washer, and measure the distance between the elec-
trodes using the appropriate feeler gauge.
Characteristic
Electrode gap
0.7-0.8 mm
Adjust the gap if necessary, carefully bending the
earth electrode. In the event of irregularity, replace
the spark plug with a recommended type.
- Fit the spark plug with the correct inclination and
manually screw it all the way down, then use the
special spanner to tighten it.
Locking torques (N*m)
Spark plug
12 ÷ 14
- Insert the cap onto the spark plug and proceed with the reassembly operations.
Hub oil
Check
Check the oil in the rear hub.
Characteristic
Rear hub oil
Capacity approximately 250 cc
To check the rear hub oil level, proceed as follows:
- Park the scooter on flat ground resting on its centre stand.
- Set the strut that adjusts the level to its minimum height.
- Unscrew the oil dipstick, dry it with a clean cloth and reinsert it, screwing it in thoroughly.
Maintenance
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