'78 Evinrude 9.9 Fuel Delivery Issue

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  • September 1, 2019 at 1:08 am #182384
    Mumbles
    Participant

      This motor runs for about a minute before dying from what seems like a lack of fuel. It has a new pump and connectors on the hose so it must be sucking air into the fuel line from somewhere else and I think I found it. The screw in fitting on the plastic tank was quite loose so after sealing and tightening it up, hopefully it should be good to go now the next time I take it to the lake.

      https://youtu.be/HGRGrF8N2b0

      September 1, 2019 at 4:51 pm #182405
      outbdnut2
      Participant

        US Member

        If that doesn’t cure it, look at the connector on the motor end of the gas line – could have a bad O-ring inside, and some aftermarket ones just don’t always seal well.

        Does it keep running if you keep pumping the gas line primer bulb?
        Dave

        September 1, 2019 at 4:58 pm #182406
        fleetwin
        Participant

          US Member

          Ok, watched this on youtube also..So, the engine did stall out on its own from WOT, wasn’t sure when I watched the first time….
          Could be anything…I wish you had an assistant with you for the ride so they could have pumped the fuel bulb when it started to crap out…
          The loose fitting is a good place to start….
          Just cuz the fuel pump is new, doesn’t mean it is any good….But usually they crap out at lower speeds…
          Keep us posted….

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