250F Hesitation off idle

You said this bike already had the o ring mod, but did you physically take it apart and check? Those orings only last so long before they break apart from the stress and most people just use safety wire now. My oring just broke again and i have the exact same issue as you for the 2nd time
 
You said this bike already had the o ring mod, but did you physically take it apart and check? Those orings only last so long before they break apart from the stress and most people just use safety wire now. My oring just broke again and i have the exact same issue as you for the 2nd time
I put it in, 0 hours on it
 
There are by far better fuels to put in your ride than AVIATION fuel. Pick your poison.
http://www.vpracingfuels.com/motocross.html
http://motocrossactionmag.com/news/racers-guide-to-the-hierarchy-of-motocross-racing-fuels

Please read this before you run out and purchase Aviation gas.
http://www.dragracingpinoy.com/arti...-info/78-tech-tips-aviation-gas-vs-racing-gas


He doesn't need race fuel right now and I'm sure he can't warrant the $13 a gallon. The av fuel is just for him to try an see if a higher quality controlled fuel suits his bikes needs.
 
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