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  1. D

    90EFI mercury model 1F904531D S/N 2B185185. Changed the low pressure fuel pump in the FSM. Will not fire off, it’s getting fuel.

    Yes the line does come from the in line filter. Ok I will try and purging the the fuel rail a little better
  2. D

    90EFI mercury model 1F904531D S/N 2B185185. Changed the low pressure fuel pump in the FSM. Will not fire off, it’s getting fuel.

    so I just went and rented a fuel pressure gauge to check the pressure in the rail. No pressure. However fuel is come out the exhaust through this hose coming off the bottom of the FSM. The lift pump is working I can here it.
  3. D

    90EFI mercury model 1F904531D S/N 2B185185. Changed the low pressure fuel pump in the FSM. Will not fire off, it’s getting fuel.

    I recently changed took apart the FSM to changed the low pressure fuel pump. Put a new seal kit in it. Inspected/cleaned all components in it. Did not change the pressure regulator. This model FSM does not have a float in it. Re assembled and tried to start the motor. It cranks but will not fire...
  4. D

    90EFI mercury model 1F904531D S/N 2B185185. Changed the low pressure fuel pump in the FSM. Will not fire off, it’s getting fuel.

    I recently changed took apart the FSM to changed the low pressure fuel pump. Put a new seal kit in it. Inspected/cleaned all components in it. Did not change the pressure regulator. This model FSM does not have a float in it. Re assembled and tried to start the motor. It cranks but will not fire...
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