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Vespa 90 - Operating and Maintenance Instructions; Dismantling Cylinder Head

Vespa 90
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OPERATION
OPERATING AND MAINTENANCE INSTRUCTIONS
NOTES
DISMANTLING
CYLINDER HEAD
INSTRUCTIONS
fuel tap rod (see Fig. 14); next unscrew
the two wing nuts securing the air filter
case and extract it.
- Remove the carburettor (screw No. 5,
fig. 12). Remove silencer, loosen bolt
connecting engine to bearer bracket (fig.
12, No. 7), detach rear damper (fig. 12,
No. 6) and swivel down the engine on its
own bearer bracket.
The cylinder head can then be eased away
from the unit by unscrewing the 4 securing
bolts by means of a box wrench.
It is advisable when
carrying out this
operation to place a
wooden platform
underneath the rear
end of the chassis
foot-board, so as to
obtain greater rear
wheel lift than is
possible by the use of
the stand and, at the
same time. adequate
stability.
14 -
Note -When re.assembling the carburettor should be mounted in such a way as to ensure that the float is located vertically.
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