bike starts to shake in 5th gear like its getting to much fuel. only happenes every once in awhile, more when going up hills. i have the 2006 c90t with aftermarket pipes, k&n air filter with the stage 3 bully FI processor. had it a year now with these add on and havenĀ“t had the problem until a couple weeks ago. i have a heavier wieght oil in it now, and was told that going to a lighter wieght oil and going to a higher octane would help, and was also told to try seafoam. does anyone know what to do or had the same problem and know what to do. please HELP!!!!!!!!!!