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Old January 29th, 2009, 09:54 AM   #3
special k
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Originally Posted by Bbright View Post
if it's running too lean (backfiring on top end) do a plug check, run it at high rpm's and shut it off, pull the plugs and if they are white, or light tan, bump the mains one size at a time till they are a medium - dark brown, and you have no more backfiring on top end, you can also screw in your air mixture screws in the winter because the air is more dense.
yea i know all that shit. im just trying to get a ballpark mainjet size to start with so i dont have to rejet 10 times, since i have the airbox still, makes it a pita
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