I’ve been trying to help diagnose my neighbors bike for a little while now. We have replaced fuel pump, plug, and done the fan mod. What we are running into is when the bike reaches 6 bars of heat it will start sputtering and cutting off. Up until that point it runs perfect. Any other ideas would be great. I have read and read and read threads on here but never found a definitive answer as to where to start. Any and all help would be greatly appreciated.

I’ve been trying to help diagnose my neighbors bike for a little while now. We have replaced fuel pump, plug, and done the fan mod. What we are running into is when the bike reaches 6 bars of heat it will start sputtering and cutting off. Up until that point it runs perfect. Any other ideas would be great. I have read and read and read threads on here but never found a definitive answer as to where to start. Any and all help would be greatly appreciated.