Hello all, new to the forum. Bought a 2003 650 this last summer and am now having an issue that first showed up this fall on my last ride and now showed again this winter plowing snow. I bought it from the original owner with 681 miles on it, it has 748 now. Since I've owned it, I changed engine and diff oil, cleaned out the carb, new spark plug, new air filter....etc. I've basically gone through it. Anyway, this last fall I took it out and ran into an issue where I would be in ESP in 1st gear and be in a mud hole. The bike would act like it suddenly couldn't rev up. It's hard to describe, but more or less, it couldn't pull it's own ass anymore. It would hit a wall and just wouldn't move. In that instance, we winched it out and I switched back and forth from ESP to auto and it seemingly went away. Now today I go to plow and we have about 1.5' of snow, for the first 10 minutes she was pulling hard and moving along nicely. I stopped to angle the plow and went to go again and it wouldn't hardly move. Like it was being governed, when just a few minutes prior I was stopping and going just fine. I'm running the oil just above full, amsoil 10w40. I can't seem to come up with anything that would cause this besides the dreaded trans o-ring problem. This bike did sit for a few years before I got it. Does anyone here have any advice or insight on this? Maybe someone who's had it happen to them? Thanks in advance.