I read an older post where you were responding to a question about an RTV900R6 that would creep and not brake. I don't have that problem specifically, but my throttle will sometimes stick. Was only at full throttle and is now worked its way to all throttle range. I thought I had eliminated cables by disconnecting them when it happen and observed the Servo Regulator would not return, unless I began to tug the lever back and then it would release and return. Talked to dealer who told me in 6 years he had never replaced one and was steering me toward cables and a missing return spring on throttle pedal. But he did not have a service manual for this model, only a 500. Your post mentioned a servo piston or swash plate sticking, which I think is my problem. Can you give me hints to determine and what is involved to repair (complete trans overhaul?). Thanks for any assistance you can be.!