Fuel Cock Inspection - Yamaha YW50AP Service Manual

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CARBURETOR

FUEL COCK INSPECTION

1. Stop the engine.
2. Remove:
8 Rear carrier
8 Tail cover
8 Left side cover
8 Battery box cover
Refer to "COVER AND PANEL" section
in chapter 3.
3. Inspect:
8 Fuel cock
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Fuel cock inspection steps:
8 Disconnect the fuel hose 1.
8 Place the receptacle under the fuel hose end.
8 If fuel stops flowing out in a few seconds,
the fuel cock is in good condition. If not, clean
or replace the fuel cock.
8 Disconnect the vacuum hose 2 and breathe
in the vacuum hose with the mouth etc. for
vacuum .
8 If fuel flows out of the fuel hose under
vacuum and stops under non-vacuum, the
fuel cock is in good condition.
If not, clean or replace the vacuum hose, fuel
hose and fuel cock.
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4. Install:
8 Battery box cover
8 Left side cover
8 Tail cover
8 Rear carrier
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CARB