Yamaha F150A Service Manual page 63

FUEL
Special service tools .....................................................................................4-1
Hose routing ...................................................................................................4-2
Fuel and blowby hoses..............................................................................4-2
Fuel filter, fuel pump, and intake silencer ................................................... 4-3
Checking the fuel pumps ...........................................................................4-7
Disassembling a fuel pump ....................................................................... 4-7
Checking the diaphragm and valves .........................................................4-8
Assembling a fuel pump ............................................................................4-8
Intake assembly and vapor separator.......................................................... 4-9
Measuring the fuel pressure .................................................................... 4-13
Checking the pressure regulator ............................................................. 4-13
Checking the check valve........................................................................4-14
Reducing the fuel pressure...................................................................... 4-15
Checking the vapor separator .................................................................4-15
Synchronizing the throttle valves............................................................. 4-16
Adjusting the throttle position sensor.......................................................4-17
Adjusting the throttle position sensor
(when disassembling or replacing the throttle body) ............................. 4-18
63P3F11
Fuel system
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