chevybanshee350 Posted September 14, 2010 Report Share Posted September 14, 2010 Yeah i have a 4-mill, Mx hardcore ported, with dmc pipes. It had stock carbs, but i just got a good deal on some keihin 34mm PJ Carbs, and was wondering were to start on the jetting, and pilot. Im also going to remove the airbox. Any help is appreciated thanks. Quote Link to comment Share on other sites More sharing options...
bansheeoutlaw07 Posted September 14, 2010 Report Share Posted September 14, 2010 Yeah i have a 4-mill, Mx hardcore ported, with dmc pipes. It had stock carbs, but i just got a good deal on some keihin 34mm PJ Carbs, and was wondering were to start on the jetting, and pilot. Im also going to remove the airbox. Any help is appreciated thanks. what elevation? Quote Link to comment Share on other sites More sharing options...
chevybanshee350 Posted September 14, 2010 Author Report Share Posted September 14, 2010 1200 ft Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 15, 2010 Report Share Posted September 15, 2010 165 main,50 pilot,cel needle 4th clip,might be rich a lil but safe.youll prob need to drop pilot but im not fimilar with your portwork hardcore/mx tell me nothing.for better answer we need to know compression,timing,fuel,jet sizes in stock carbs,and if you can find out motor specs like exhaust measurements in degrees along with transfers Quote Link to comment Share on other sites More sharing options...
chevybanshee350 Posted September 15, 2010 Author Report Share Posted September 15, 2010 The compression right around 130, timing at 4 degrees,and i was running 340 mains, 27.5 pilots on the stock carbs. Also running 93 pump gas. Hope this helps Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 16, 2010 Report Share Posted September 16, 2010 i would say 150-155 main 48 pilot,cel needle 4th clip,make sure your plug caps ohm out rite befor jetting or else youll chase your tail Quote Link to comment Share on other sites More sharing options...
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