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Yamaha F350B - Fuel System; High-Pressure Fuel Pump Control; Low-Pressure Fuel Pump Control

Yamaha F350B
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2-38
Fuel system
Fuel system
High-pressure fuel pump control
The high-pressure fuel pump operates for 5 seconds after the “POWER” switch is turned to ON, and
always operates while the engine is running.
The fuel pump continues to operate for 7 second after the engine is turned OFF.
TIP:
After the “POWER” switch is turned to ON, all injectors are activated one time to prevent clogging be-
fore the high-pressure fuel pump operates.
Low-pressure fuel pump control
Between idle and 1100 r/min, the pump will cycle ON for 10 seconds and OFF for 20 seconds.
Above 1100 r/min, the pump is ON continuously.

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