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  1. #21
    Veteran Member
    Join Date
    Mar 2010
    Posts
    1,869
    Location
    Ontario
    Tractor
    CT235

    Default Re: B&S 21hp v-twin governor adjusting problem

    1/8th of a turn is about right.
    Tim.

  2. #22
    Gold Member
    Join Date
    Nov 2012
    Posts
    254
    Location
    Newark, de
    Tractor
    International 424

    Default Re: B&S 21hp v-twin governor adjusting problem

    Make sure you set the govenor and linkage in the right position before you tighten the nut up.

  3. #23
    New Member
    Join Date
    May 2013
    Posts
    13
    Location
    Tallahassee FL
    Tractor
    B&S

    Default Re: B&S 21hp v-twin governor adjusting problem

    Quote Originally Posted by sox3 View Post
    Make sure you set the govenor and linkage in the right position before you tighten the nut up.
    Do you know how I can check it? I was trying to set it up for a long time. I couldn't make the throttle (carb intake) closed when the engine is off. My be it's bent? Do you know any source of pictures or drawings?
    Thanks a lot.

  4. #24
    Gold Member
    Join Date
    Nov 2012
    Posts
    254
    Location
    Newark, de
    Tractor
    International 424

    Default Re: B&S 21hp v-twin governor adjusting problem

    The way to set the govenor is to move the gov lever so the throttle in full open, then turn the gov shaft n the same direction and tighten. you should be able to move the gov lever and the throttle should move open to closed with no binding. if it does not, you havea gov or linkage problem. I'm sure you can find a diagram on line if you search it or buy repair manual for the engine.

  5. #25
    New Member
    Join Date
    May 2013
    Posts
    13
    Location
    Tallahassee FL
    Tractor
    B&S

    Default Re: B&S 21hp v-twin governor adjusting problem

    It is exactly like that - I did all of it and the throttle is wide open. Linkage looks exactly like on the manual diagram. Does it mean that I have to replace governor mechanism? This is the exact question I have. Are there any ways to check the governor mechanism before disassembling the engine?
    Thanks.

  6. #26
    Gold Member
    Join Date
    Nov 2012
    Posts
    254
    Location
    Newark, de
    Tractor
    International 424

    Default Re: B&S 21hp v-twin governor adjusting problem

    can you move the gov lever to close the throttle? if not, internal gov assembly is most likely problem. If the engine went into an overspeed sometimes the fly weights push out and become stuck. that is a possibility. Only way to inspect without splitting sump from block would be to use a mini camera. I always used one for cylinder inspection, transmission, etc. They are not difficult to split, just remove and flip over. remove sump and look at it. Will need new gasket, may as well replace seal too.

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