Edited by Warzardo, 01 August 2011 - 04:55 PM.
Posted 31 July 2011 - 08:44 PM
Posted 02 May 2012 - 08:39 AM
Posted 31 May 2012 - 04:12 AM
bought a quad with some work done to it. It has a 478 big bore kit(jt piston), hotcams, k&n filter(lid on), hmf bill ballance slip on. i noticed it backfired like crazy when i let off the throttle, so i upped the pilot from a 48 to a 50. that solved the backfire. she runs great at low rpm and pulls like crazy but at top end it bogs badly. not sure what my main jet is now but my only guess is that i need to go bigger because at the top end it seems to be starving for fuel...
not sure where my needle is set or how many turns i am on my idle screw.
so before i tear into it, does anyone have any suggestions on the main jet, needle setting, and idle screw?
70-80 degrees, 600' above sea level.