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Rotax OM-912 Maintenance Manual

Rotax OM-912
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73-00-00
page 22
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02623
BRP-Rotax
Maintenance Manual
2
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3.3.2) Float needle valve leakage test
See Fig. 73-12.
This check is carried out to ensure that the float valve seat is not leaking.
If the pressure is not maintained, pay particular attention during
disassembly to the float valve with the viton tip and the carburetor
housing.
Turn the carburetor upside down, as the float needle valve is only
closed in this position.
Connect pump (1) to the fuel supply line (2) and generate an excessive
pressure of approx. 0.4 bar (5.8 p.s.i.).
The excessive pressure must be maintained for about 5 seconds.
â–  CAUTION: If excessive pressure drops, this indicates leakage
which may cause fuel overflow and in consequence
engine damage due to hydraulic shock.
Replacement of the float valve seat is not permissible.
07714
Fig. 73-12
1
2

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Rotax OM-912 Specifications

General IconGeneral
BrandRotax
ModelOM-912
CategoryEngine
LanguageEnglish

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