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17hp Vanguard how do you increase RPM

Discussion in 'Mechanic and Repair' started by Daves, Oct 27, 2001.

  1. Daves

    Daves LawnSite Member
    from Ohio
    Posts: 7

    I have a 17 hp vanguard how to you increase the engine RPM's
     
  2. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    does it run bad? too slow? i would think you should adjust the high speed screw on the carb.
     
  3. Daves

    Daves LawnSite Member
    from Ohio
    Posts: 7

    Yes it running slow It's only 2 yrs old it has no high limit screw on it I believe it is preset at factory
     
  4. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    im not sure, but i would think that the governor should be adjusted somehow.
     
  5. thfireman

    thfireman LawnSite Senior Member
    Posts: 541

    I need the same info. I think the carb needs adjusting some how, But I cant find any help on this subject.
     
  6. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    I'll look for that info on my Briggs CD rom repair manual, I'll see if there is any related info in it. If I do find it I'll let you guys know.

    Robert
     
  7. thfireman

    thfireman LawnSite Senior Member
    Posts: 541

    Thanks Robert! :)
     
  8. Robert Doubrava

    Robert Doubrava LawnSite Senior Member
    Posts: 342

    No problem, all I need is the model numbers off your engine!

    Robert:)
     
  9. John DiMartino

    John DiMartino LawnSite Silver Member
    Posts: 2,555

    Daves,do not increase the RPM based on sound,the Briggs Vanguards are very smooth and quiet. I thought mine was set to slow also,but i checked it with a handheld RPM tachometer,the RPMS were perfect,the engine just sounds like its loafing along,where as my Kohler at the same speed sounds like its coming unglued.
     
  10. mikemerritt

    mikemerritt LawnSite Member
    from MS
    Posts: 42

    Make sure the throttle is moving all the way open. If the RPM's are correct (and they probably are) any attempt to gain RPM's via the governor will cause a lean situation with no high speed screw.....Mike
     

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