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carb Sputter full throttle between 5500 and 7500 rpm

  • Thread starter Thread starter jtobin57
  • Start date Start date
J

jtobin57

Guest
Hello everyone I have got some great info from all of you in the past,but I can't seem to find my new problem on here. After reading many posts about the cv carb issues I have completely torn down and properly cleaned the carbs and done a valve job.

My problem is I sputter at full throttle between 5500 rpm and 7500 rpm. Below that full throttle is fine and above that is fine all the way to redline. Also it does it in every gear more noticeable in 3rd 4th and 5th

the bike is a 1980 gs850g. Uni pods. Mac exhaust 4 to 1 with a Vance and Hines insert modified to fit. Dino jet stage 3 kit with the 150 mains in it. Needle set to fourth down from top. Air screws are at 3 turns out.

Let it me know of any suggestions or any other info you need

thanks so much
 
Did it behave like this before you cleaned carbs? Have you been using this dynojet setup for a while? Tried moving the needle?
 
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