Hello all! New here and just bought my first ATV a couple weeks ago (pumped!). Been having some trouble though and hoping you all can help:) Got a great deal on a 2010 TRX420 with ESP and less than 150 miles! Had stalling problems that were related to old gas and took care of that. Unfortunately now that we seemed to be doing fine, I was riding and my rear wheels locked up (thank God nobody was hurt). Now I can only drive in 1st and NEUTRAL but the rear wheels lock in any other gear. Reverse does not work either. I’m thinking I should replace the angle sensor? Maybe take Kentco’s "lube the gears" advice? Please advise!!!