Gilera Nexus 500, Workshop Manual, Page: 39 / 406

Spark plug
Check and replacement
CAUTION
THE SPARK PLUG MUST BE REMOVED WITH
COLD ENGINE. THE SPARK PLUG SHOULD
BE CHECKED EVERY 6,000 KM AND RE-
PLACED EVERY 12,000 KM. THE USE OF NON-
CONFORMING IGNITION CONTROL UNITS
AND SPARK PLUGS OTHER THAN THOSE
PRESCRIBED CAN SERIOUSLY DAMAGE THE
ENGINE.
Characteristic
Recommended spark plugs:
CHAMPION RG6YC - NGK CR 7 EKB
- Position the scooter on centre stand.
- Open the door on the left side and remove the relevant screw lifting from the lower part in the specific
groove.
- 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
Nexus 500
Maintenance
MAIN - 7