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Fuel Output Test

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  • Fuel Output Test

    To test the fuel output, I took the following steps.

    1 - I removed the fuel hose from the carbs
    2 - I pumped the primer bulb and got full flow through the hose.
    3 - I started the engine and the fuel output through the hose was far less than full flow (about a 1/4 the output) and it was pulsing.

    From what I understand, pulsing is somewhat normal as long as it isn't spitting air,is that correct?

    The other thing is the amount of flow, I wouldn't expect it to be as much as when you pump the primer, but what flow should i get?

    I have the kit for the new pump on the way, I'll replace that and check it again. But I'd like to know what to expect from a "known good" pump.

    Thanks

    M
    1987 Bayliner Capri
    1987 Force 125
    http://www.reinsmith.net/boating.aspx

  • #2
    Sign up today
    Re: Fuel Output Test

    2-4 psi

    it increases as rpm increase

    you can rebuild for under $20
    Medford, WI


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