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Sled is jerky when riding

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Thread: Sled is jerky when riding

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    Labhunt's Avatar
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    Sled is jerky when riding

    So my 04 Polaris 600 edge touring started riding really jerky the other day. It doesn't want to pick up speed and if I try to go faster the engine bogs a little. I can also smell a bit of belt burning. Correct me if I'm wrong, but I'm thinking the problem have something to do with something in the chaincase? It's like there's too much resistance from the track/chaincase/jackshaft. Need help where to look first. Thanks

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    By the way, it started doing this after I was stuck one day and went in forward and reverse a bunch of times trying to get out

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    Could be a few things. I'd start with removing the belt and inspecting it for flat spots or glazing. Then while the belt is off lift the rear of the sled and turn the track to check for resistance. That should get you started in the right direction.

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    I would definitely start by looking at the belt. Then continue with on with the case if you feel it requires attention. Couldn't hurt to inspect the drive gears n chain

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    I put a new belt on it and also have rotated the track. It seems to be fine. I partially took apart my primary clutch and cleaned the weights and pins because they were a bit sticky. They aren't worn and they move freely now. When I ride slow, I can feel a definite jerk every few seconds. When I go faster, it turns into an extra vibration. What would cause that? Just looking for answers without tearing apart the whole sled. Would a bad bogie wheel bearing cause that?

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    You didn't do your drivetrain any favors when you were spinning it while you were buried in a hole. If your belt is burning and your motor bogs on acceleration, probably your clutches aren't shifting right. You might have broken or jammed something up in the secondary when you were shifting back and forth between reverse and forward.

    With the sled on a track stand, can you spin the track by hand reasonably easily? What do the clutches and belt do when you run the sled on a stand? If your belt and clutches aren't the problem, I'd say look at your driveshaft and track. If the plastic drivers on your driveshaft are broken, or you burned a bunch of the drive nubbins off the inside of your track, it could cause the problems you are experiencing.
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    The track will rotate by hand and doesn't feel like it binds at all. I checked the driveshaft drivers and they all look fine as to the nubs on the inside of the track. I did have my secondary apart a few weeks ago and I noticed that the large washer (not sure right terms) that the tensioner bolt pushes on had worn a bit into the sheave where it contacts it. Could that cause a jerky feeling when going slow and vibration when fast?

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