'94 formula 580 no go
I just bought a 94 formula stx 580 and had it out for my first ride, when I stopped at a street crossing I gave her the gas but just starting revving up and didnt move anywhere. Did hear any bad noises or clunks, just wouldnt move. Before I get the "are you stupid?" fixes I did check the parking brake and everything that seemed too obvious. Still would start up and run just fine but as I said would only rev up. A buddy suggested looking at the chaincase, which I got the cover off of and looked fine, now I'm just waiting to throw some more gear oil in there to start it up again.
Does anyone have any suggestions on where to look? From what I hear these are pretty bulletproof sleds so long as they get their seasonal maintenance. The removed chaincase oil looked pretty thick and the dipstick was actually missing so im thinking some snow could have melted in there then frozen up eventually. Does this sound like a possibility? This is my first sled but I do have a general mechanical knowledge and the service manual but havent pulled apart enough 2 strokes to know where to start. A nudge in the right direction would be greatly appreciated.