So my 2004 600RR has about 31,000+ miles on it, but runs clean and good. Only have 1 problem though.
Low end seems to be ripping, but when I get to 9000RPM, the bike seems to die down. It sounds kind of like it is starving for something, just cant figure out what. I don't pick up any speed, and I don't lose any. The bike just sounds like its going to explode right from under me. If I'm giving full throttle, the bike only tops out at about 120
If I give about 10 - 15% throttle, it picks up speed and the RPMs will go above 9K, but if get on the throttle AT ALL (anything more than 15% throttle) this happens.
I recently changed the air filter and spark plugs thinking this would help, but no such luck. . . Oil has been changed every 2 - 3K miles like clockwork also . . .
Only aftermarket part on the bike is a Slip-on Stiletto exhaust from Honda. . .
Anybody have any similar problems or ideas of what could be causing this??