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  1. S

    2003 XB9R running TERRIBLE please help!

    Hey thanks for the reply! No check engine light activation at all after start up. Can you explain a little more about 2 of the 4 symptoms. Which two symptoms are pointing to an unhealthy motor and what’s indicating abuse and excessive heat? Any ideas on why the bike runs much better with AFV’s...
  2. S

    2003 XB9R running TERRIBLE please help!

    High AFV equates to more fuel so it’s actually like the bike is running lean without turning AFV’s abnormally high. I have pulled the injectors and tested the spray pattern. I did not check the flow rate on them though. I have also spoken with Chaz several times. He’s a wealth of knowledge and...
  3. S

    2003 XB9R running TERRIBLE please help!

    Yeah, unfortunately I’ve reset it 20+ times. I’ve even intentionally set it WAY out of spec just to see what type of reaction it causes and honestly it doesn’t change a whole lot…..one detail I forgot to mention is that if I set the AFV to 150% the bike will start and idle correctly all day...
  4. S

    2003 XB9R running TERRIBLE please help!

    2003 xb9r 30k miles. Bought it as a project. Will start and idle for a short time before stalking out. You can rev it and keep it running but it runs like absolute crap spitting popping backfiring etc. I replaced the fuel pump assembly from the get go knowing it would be needed at some point...
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