After riding the bike around today, I found that it now has an extreme amount of viabration at higher rpms and that it cuts out at high rpms due to lack of fuel. The high rpm harmonic viabration is so bad, that it not only makes it extremely uncomfortable to ride, but it shakes loose all the bolts on the bike causing a major ongoing maintenance issue around tightening bolts and nuts all over the bike. I tried to make it richer with no success. I adjusted the float as much as possible with out it flooding, and again no luck. It still acts like it is starving for fuel and cutting out at the upper end of the rpm band. Remember, this bike is ported as well. With these problems persisting, I will have to go back to the stock exhaust. Anybody have any suggections?