Fuel Pump Circuit Operation - Yamaha VMX12H Supplementary Service Manual

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FUEL PUMP SYSTEM
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FUEL PUMP CIRCUIT OPERATION

The fuel pump circuit consists of the fuel pump
relay, fuel pump, and fuel reserve switch.
The fuel pump starts and stops as indicated in
the chart below.
START
stop
switch turned to
"ON"
reserve switch
turned to "RES"
For about 5 seconds
when carburetor fuel
level is low
7-53
FUEL PUMP
Engine turned on
After about
0.1
second
Fuel pump relay
Fuel pump
Fuel reserve switch in " RES' position
Fuel reserve switch in
Ignitor unit
"FUEL" indicator light
Fuel sender in "FULL" position
Fuel sender in "EMPTY" position
Engine stop switch
Main switch
To main fuse and battery
R/W
STOP
warning
indicator light
comes on
After about
30
seconds
"ON"
position
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R/G
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turned off
After about
5
seconds
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