- Disconnect the spark plug H.V. cable cap.
- 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.
- Fit the cap on the spark plug as far as it will go.
- Carry out refit operations.
CAUTION
THE SPARK PLUG MUST BE REMOVED WHEN THE ENGINE IS COLD. CHECK AND REPLACE
THE SPARK PLUG AS INDICATED IN THE SCHEDULED MAINTENANCE TABLE. USING NON-
COMPLYING IGNITION CONTROL UNITS OR SPARK PLUGS OTHER THAN THOSE PRESCRI-
BED MAY SERIOUSLY DAMAGE THE ENGINE.
Characteristic
Vespa LX - S 125 3V ie 150 3V ie (2012) Maintenance
MAIN - 39
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