[/quote]I had that problem what I did was put in a aftermarket one( from the outside inward)Arctic Cat style (swinging roller arm) in the chain case took the stock stuff out (pucks with springs). One thing you should look for is alinement take a straight edge from gear to gear if the chain binds then your not aligned correctly. Most gears have a offset on them make sure you have them in correctly also some chains are not the same
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Is this the part you used- Western Power Sports part number 54-3002? It's on page 920 of the 2014 Snowmobile catalog which you can see online. I'm going to put one on mine this summer. I also use a 13 wide top sprocket and 13 wide chain for the extra strength. You have to shim the lower sprocket to align it or center the chain on the lower sprocket.