Piaggio Fly 4T servicemanual - Scootergrisen
Piaggio Fly 4T servicemanual - Scootergrisen
Piaggio Fly 4T servicemanual - Scootergrisen
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MSS <strong>Fly</strong> 50 <strong>4T</strong> Engine<br />
- Check the diaphragm is in good conditions and<br />
remove the remaining components of the acceler-<br />
ating pump following these steps:<br />
- Insert the O-Ring in the pipe.<br />
- Insert the diaphragm together with the pin and its<br />
spring.<br />
N.B.<br />
REPLACE THE DIAPHRAGM IF THERE ARE SIGNS OF UN-<br />
DULATIONS, CRACKS OR HARDENING.<br />
- Fit the accelerating pump diaphragm cover and<br />
tighten the 2 fixing screws making sure the spring<br />
below is correctly positioned.<br />
- Fit the rubber bellows protecting the pin in the<br />
upper part of the accelerating pump.<br />
Level check<br />
- Tilt the carburettor so that the needle valve at the<br />
fuel supply is closed and the float weight does not<br />
affect it.<br />
- Check that the diaphragm closing line and the<br />
float central line are parallel as shown in the figure.<br />
- Blow air in to the tank and then assembly it and<br />
its gasket on the carburettor body with the 3 fixing<br />
screws.<br />
N.B.<br />
-ALWAYS USE NEW RINGS AND GASKETS FOR REFIT-<br />
TING.<br />
WARNING<br />
THE SCREW IN THE TANK BOTTOM IS A BLEEDING ONE<br />
AND CONSEQUENTLY IT ONLY REQUIRES CLEANING.<br />
ENG - 119
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