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  1. #1

    Default 68' 500 stalls under load

    68' 500 2476762 s/n. Stalls under load, when I have someone pumping the primer bulb runs fine. Is this a float issue, pump issue or bulb and lime issue.

  2. #2
    Join Date
    Sep 2010
    Posts
    17,431

    Default Re: 68' 500 stalls under load

    Open low speed mixture screws 1/8 turn at a time and test run.

  3. #3

    Default Re: 68' 500 stalls under load

    Ok I will try that. I did replace the inlet needle and seats for both carburetors and had to readjust the float stops which was rather difficult to get correctly.

  4. #4

    Default Re: 68' 500 stalls under load

    Thanks racerone, that did solve the stalling issue. Seems like about 3/4 throttle it wants to stall but won't(runs rough) I just got this unit. It seems like it doesn't spin at full RPM and I feel like whoever had it compensated for the power loss by improperly adjusting some of the adjustment screws.. My seloc service manual is kinda confusing at times

  5. #5
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    16,216

    Default Re: 68' 500 stalls under load

    You might have too much prop on it.

    Jeff

  6. #6

    Default Re: 68' 500 stalls under load

    Perhaps, it's pushing my 18' pontoon and it has what I believe to be a 15p prop.

  7. #7
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    16,216

    Default Re: 68' 500 stalls under load

    WAY too much prop! I used a 15 pitch on my 9 foot speed boat with a similar motor.

    Jeff

  8. #8

    Default Re: 68' 500 stalls under load

    Thank you Jeff I appreciate your support. Do you have a suggestion? I was thinking 13p? Still to much

  9. #9

    Default Re: 68' 500 stalls under load

    I have the not so easy to find 11 spline prop shaft. Any suggestions on where to locate one?

  10. #10
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    16,216

    Default Re: 68' 500 stalls under load

    E-Bay.

    Alternately, you can get the more common 13 splined prop re-hubbed for 11 splines.

    Jeff

  11. #11

    Default Re: 68' 500 stalls under load

    So how do I re-hub the new one? I need to get the prop and buy a separate hub with the 11 spline? I have a local marina looking for one in their organ donor pile.

  12. #12
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    16,216

    Default Re: 68' 500 stalls under load

    A prop shop will remove the old hub and install the new one.

    Jeff

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