3 replies to this topic
  • ill_caper

Posted October 15, 2003 - 02:26 PM


I just cant seem to get it right. It rips on top. It rips good throughout the entire range but still backfires on decel. THe fuel screw is turned out almost 4 turns. It takes a while to start cold now too and is backfiring when I try and start it. Does anyone have any ideas? Setting are in my sig except for fuel screw, which is turned out more. Any help would be much appreciated. Thanks, D :D :) :D :D

  • Indy_WR450

Posted October 15, 2003 - 02:28 PM


Try a 48 pilot jet. and try position #5 on the needle clip and move up to a 72 starter jet for cold conditions :)

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  • RichBaker

Posted October 15, 2003 - 03:00 PM


When everything is correct, there WILL be a little popping on is normal; throttle closed means high vacuum and rich mix exiting the exhaust system. When it hits open air the unburnt fuel burns.....

  • James_Dean

Posted October 15, 2003 - 09:50 PM


Try the blue marked needle in the 3rd clip position. It will richen 0-1/4 throttle only and will not need the fuel screw turned out as far.



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