OPERATING AND MAINTENANCE: Common operations to carry out
ADJUSTMENT ON CARBURETTOR
For adjusting the idling turn the slow running adjuster screw (on the air cleaner
cover) (Fig. 9, n. 5).
- On the carburettor body a set screw is provided for adjusting the throttle cable play;
this screw is to be reset
only if necessary
or on dismantling and reassembly
operations.
- On the air cleaner case, opposite to said screw, is a plugged hole. When this plug is
removed the spring loaded idler adjusting screw is accessible (Fig. 9, n. 14).
To avoid carburations troubles, we recommend that this adjustment is carried out by a
Vespa dealer.
STARTING UP when the engine is flooded:
In the case of difficulties caused by flooding (presence of unvaporised mixture in the
cylinder), the following methods can be used:
- Attempt push starting: engage the 2nd gear, declutch, push the vehicle to a certain
speed, sharply release the clutch and when the engine fires declutch immediately.
- Close the fuel tap, remove the sparking plug (page 23) and clean; then kick over the
engine several times. Screw in the sparking plug securely, open the fuel tap and start
the engine.
