Pwk 28 mm jetting

Discussion in 'Jetting' started by Slydog, Jun 25, 2020.

  1. Slydog

    Slydog Member Technician

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    The further you turn the air screw in the richer it makes it. 1/2 will be ok. It will still give you some adjustment for temp changes.
    Or buy next size up pilot jet.
     
  2. TravisC1989

    TravisC1989 New Member

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    well dose a 112 sound lean on the main dose not seem to run hot or anything
     
  3. TravisC1989

    TravisC1989 New Member

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    I’m around 2700 feet stock bore fmf fatty with fmf silencer carb is a 28 pwk
     
  4. Slydog

    Slydog Member Technician

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    Read up on plug chops. I would definitely check it. I run a kehin pj34. With a 162 main. At sea level. But that is with a ported stroked big bore. Last thing you want is to run too lean.
     
  5. TravisC1989

    TravisC1989 New Member

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    Would you think a 112 main would be to lean at 2700 feet like I said I have boysen reeds fmf fatty and fmf silencer aftermarket filter I just don’t really know lol I can plug chip tomorrow after work I just down understand why the air screw is at its prime at a half turn out intried a lager pilot it didn’t seem to help and im positive it has no air leaks
     
  6. Slydog

    Slydog Member Technician

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    Your plug will give you your answer. Buy a 4pack or more of plugs. You can do half throttle plug chops also. Which is where most riding is done.
    Main jet. Comes into play at3/4 to full throttle. The pipe and air filter will have and affect on jetting. Reeds normally don't affect jetting.
     

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