Operating And Maintenance - VESPA 90 Operation And Maintenance

OPERATING AND MAINTENANCE INSTRUCTIONS
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: select the 2nd
gear, declutch, push the vehicle to a
certain speed, sharply release the clutch
and when the engine starts declutch.
-
Close the fuel tap. remove the sparking
plug (fig. 13) and clean; then kick over
the engine several times. Screw in the
sparking plug securely, open the fuel
tap and kick over the engine.
ADJUSTMENTS ON CARBURETTOR
For adjusting the idling speed turn the slow
running adjuster screw (fig. 8 No. 2).
-
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 re-
assembly operations.
- On the carburettor body is a spring
loaded volume control screw (fig.8, No. 3).
In order not to influence the engine
running at idle speed, we recommend
that owners should avoid resetting
this screw. Any alteration should
preferably be entrusted to a Service
Station.
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