Dismantling The Reed Valve; Refitting The Reed Valve - NACIONAL MOTOR Derbi Euro 3 Workshop Manual

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ISMANTLING THE REED VALVE ISMANTLING THE REED VALVE
- Remove the carburettor from the engine.
- Extract the inlet nozzle closing bolts and the inlet nozzle.
The reed valve can then be accessed and extracted
- Check that there are no cracks, distortions or breakages
on the reed petals. If there are, renew them.
- Remove the securing screws from the height limiter and
from the inlet valve petals and check that there are no
cracks in the petals' securing base. If there are, renew the
reeds.
R
EFITTING THE REED VALVE
- To refit the reed valve, proceed in the reverse order to
dismantling, paying special attention to the correct posi-
tioning of the height limiter and the reed (with the bevels
matching). The elimination of the height limiter and the
type of reed used will modify the performance of the en-
gine and may make it less reliable.
- Check the reed cage O-ring and replace it if damaged.
Fit a new seal.
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