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Vespa 150 - Vespa 150 Fault Finding: Hard Starting Issues; Fuel System Issues; Carburetion Issues

Vespa 150
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fAULT fiNDING
When the machine does not run properly. make all inspections and rectifications as explained below.
If the suggested remedies are not suffocient to eliminate the trouble, the customer should not try to carry out operations
pertaining to the sale agents. who have the necessary facilities to undertake this work.
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32 -
locating
the trouble
Remedies Remarks
HARD STARTING
I. - Fuel system
Fucl tank empty
Turn to creservc». Refill as soon
as possible
Fuel does not flow to the carburettor although
the fuel
tap is open or in position ere serve»
a) Depre..
the
tickler until some
fuel
drips
out.
h)
Unscrew and remove the m3in
jet.
If
the fuel
system is efficient, fuel will come
out.
e) Blow through
jet orifice
to ensure that it
. To be
is clear.
car-
Filter at of
sediment bowl
ricd out
top
I
by
a sale
Filter on
carburettor
agt"nt.
Fuel tap body
Clogged.
Carhureltor body
dirty
Remove
and wash
in
gasoline - Blow dry
Main
jet
and
atomizer
Hose between
sediment
bowl
and
carburettor
Float needle valve
sticking
in
its
seating
Release
by depressing
the
tickler
2. - Carburation
Engine flooding See page 21
Tickier
sticking
in
depressed position
Rele3e

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