1999 750 ace running rough and tune issue

• 750
• Duel carb
• tuning
• Ace
• 1999

• AJ

  Aidan James

  6/10/25, 6:04 PM

  Alright got a 1999 750 ac dual carb. Did tj rebuild kit and ive been having some many issues. Got the float bowls set to 9. 7 witch is factory wasn't working and was recommended 9mm by a few people who have done this. 145 and 45 jets. Open exhuast and velocity. Starts and will be fine then starts like its loosing fuel but its not. Then it's hard to start. Revs up fine. After it starts acting up it sounds awful. One thing I did find is bike still runs even after turning fuel off. If ya need any more info just ask. Followed the tune guide and I think its having some issues more then needed tuned better

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  TJ Admin Staff member

  6/12/25, 6:11 PM

  @Aidan James Was the bike running before you installed the rebuild kit, stacks and exhaust?  

  DO FUN SHIT!
  Check the FAQ's here for tons of tuning info and more!! - t.ly/MA6r6

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• AJ

  Aidan James

  6/17/25, 7:11 PM

  @TJ Yes it was. Also only has 1 shim that it came out the box with. Thought 2 might be too much. 

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  Moderator

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  TJ Admin Staff member

  6/18/25, 10:33 AM

  @Aidan James you need 2 shims for shure, under a STOCK needle, dont use some clip needle. theyre impossible to tune with this kit. 

   

  DO FUN SHIT!
  Check the FAQ's here for tons of tuning info and more!! - t.ly/MA6r6

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