I think there is a thread on supermotojunkie about the flapper mod, probably thumpertalk too. I did it on mine but can't seem to remember what was involved lol, it was pretty simple.
Do you have a link to the air flapper mod you did? I put a fmf pipe, header, and tuner on mine but never messed with the airbox. I know thats def holding it back.
Thats insane. I cannot imagine jumping downhill on dirt with SM tires. I'd eat s__t!
its pretty simple theirs a flap on the air box that opens an closes with throttle postion for epa crap....i just ripped mine off... but find the thread on supermoto
Badas$ video of Shanes on the motard. I really want to take an aluminum framed CR250 and swap a CR 500 or KX500 (powervalve motor) into that chassis and have it as a street driven supermoto setup
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