I bought this bike not running and was wondering if anyone has any insight into a flat spot in my motor between 4000-5500rpm. I have had it into the shop on the dyno to get it tuned out but there is nothing working. I have the Denso plugs and they are burning fine so its not the spark plugs. It has a k&n filter in it right now and I will be changing it to a stock filter. Im running 93 octane fuel, the chain is good, so the shop has no idea whats wrong. I know there are some inteligent people on here that can probably point out something we are missing.