Hi there,
everythings in order with the fuel lines etc, but surely if there was a problem with fueling and air why would the bike run fine in 1,2,3 gears, thats what I can't get my head around, could the prob be with the spark plugs/coils ??? in 4,5,6 gears the engine would be under more load ???? In 3rd at 14000 rpm I'm doing about 85 mph then changing up to 4th the bike starts being unresponsive and speed wil drop until revs are around 5000 but I can feel the bike wanting to go but just does'nt get there,its weird.