VESPA LX Series, User Manual

Page: 35 / 272

- Disconnect spark plug HV cable hood and, acting
on the engine compartment, release the cable
from the retaining bracket.
- Slide the internal cover upwards.
- Unscrew the spark plug using the wrench sup-
plied.
- Check the conditions of the spark plug, make
sure the insulation is intact, that the electrodes are
not excessively worn or sooty, the conditions of the
washer, and measure the distance between the
electrodes using the appropriate feeler gauge.
-Adjust the distance, if necessary, by bending the
side electrode very carefully. In case of anomaly
(as described before), replace the spark plug with
another of the 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.
- Refit the cover.
- Place the cap fully over the spark plug, and tie down the cable to the bracket.
- Carry out refit operations.
CAUTION
THE SPARK PLUG MUST BE REMOVED WHEN THE MOTOR IS COLD.THE SPARK PLUG MUST
BE REPLACED EVERY 20,000 KM. THE USE OF NON CONFORMING ELECTRONIC IGNITION
CONTROL UNITS OR SPARK PLUGS OTHER THAN THOSE PRESCRIBED CAN SERIOUSLY
DAMAGE THE ENGINE.
Vespa LX 125 - 150 i.e.
Maintenance
MAIN - 35