Hi, first off want to say awesome site, gave me a lot of info on some different things. Recently bought a banshee, had some problems, boiled down to having 90 psi on both, want to do rebuild but not sure what size motor I have. I know its power valve cheetah. But not sure what size? On top of my dome it says cheetah 68.5 - 21 - 10. Any and all info would be surely appreciated. Thanks