I didn't realize belts could only turn one way? I've never replaced a belt, but as this one is starting to sit flush with the secondary clutch, I think it's finally time to replace it. Not bad, got 1,756 miles out of it on an '05 Fusion 900. Considering everyone still tells me a belt on a Liberty 900 typically lasts 400-700 miles, I've gotten over double that.

But if the skis are stuck on anything, I don't give it more gas, I free the skis up. I saw a Bombardier today try to back up in a parking lot and his carbides stuck in the pavement, so he gave it full throttle until it moved. Well, that's gotta be hard on the belt. I'll give burps of gas, and if the sled doesn't move (it takes very little gas to get it to move) then I know something's stuck. Aside from that, I do treat it hard. 0-90mph is my thing (I'm talking trailway riding). If you ride your 440 easily, the belt should last 4,000 miles no problem, however I've seen a 340 do this and the belt literally started to rot before it wore out. All it took was one good nip of the throttle and it probably could have done some serious damage to it.
If it sits good, and looks good, then it doesn't need to be replaced, lol. If it rides rough (belt slipping/worn spot in belt) or sits low on the secondary, replace it. Ideally, for safety sake, I should have replaced my belt at 1,500 miles. I'm experiencing belt slippage now, though it still takes off well if I nip the throttle. When I replace the belt, I'll measure it with the new one. It is visibly and noticeably smaller than the spare that I have.
