Yamaha 4TX-AE3 Two-Way Radio User Manual


 
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FUEL PUMP SYSTEM
ELEC
WARNING
EB808410
CHECKING THE FUEL PUMP
Gasoline is extremely flammable and under
certain circumstances there can be a danger
of an explosion or fire. Be extremely careful
and note the following points:
_ Stop the engine before refuelling.
_ Do not smoke and keep away from open
flames, sparks or any other source of fire.
_ If you do accidentally spill gasoline, wipe it
up immediately with dry rags.
_ If gasoline touches the engine when it is hot,
a fire may occur. Therefore, make sure that
the engine is completely cool before per-
forming the following test.
1. Check:
_ fuel pump operation
a. Fill the fuel tank.
b. Put the end of the fuel hose into an open con-
tainer.
c. Connect the battery (12 V) to the fuel pump
coupler as shown.
Battery positive lead ! blue/black
1
Battery negative lead ! black
2
d. If fuel flows out of the fuel hose, the fuel pump is
OK. If fuel does not flow, replace the fuel pump.