i have a 99 banshee and it has some issues. First, it doesnt always like to shift into 3,4,and 5th. when i shift, i cant feel it go into gear, cant feel any positive reaction or anything. and lets say im in 3rd, right after i shift i floor it and i quickly pick up speed and can hear the engine working, then all of a sudden its like it stops accelerating and goes near the max rpms. if i hold it there for a few seconds it starts working again and i start accelerating again. Out of all the 2 strokes, bikes/atvs, raptors to banshees, this has never happened. what could it be?