Reply To: 57 Johnson Javelin runs and then stops after about 40 seconds

Home › Forum › Ask A Member › 57 Johnson Javelin runs and then stops after about 40 seconds › Reply To: 57 Johnson Javelin runs and then stops after about 40 seconds

April 27, 2020 at 1:59 pm #201220
h20lew
Participant

    Thanks guys for the input. I forgot to mention I did a fuel pump conversion on it. Newer OMC pump and it’s a larger one rated for motors of this size. And the priming bulb holds on the initial start – but this suggestion caught my eye:

    “Turns out the pump (Mikuki) couldn’t “lift” the fuel that high. Put tank on a five gallon bucket, ran great.”

    I’m running this on a stand with a garden hose adapter to supply water and with the fuel tank on the ground…. so the lift sounds like it might be a possible culprit. ‘lI”try it again with the tank elevated and see if I get better results. I’ll also try the high speed needle check and report back.