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OK im looking into buying a 03 polaris sportsman 600, the guy said 1 of the connecting rods was going bad (he has the engine down) and i was looking on the parts diagrams and it doesn't seem like you could pull it apart to replace it, what the hell!!! And there doesn't seem to be any replacement parts on the net. Babbits has the diagram

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Looks like the crank is not rebuildable, you may need to buy a whole new crankshaft. The counterweights on a non-rebuildable crank can be machined to accept a push though pin, but that is probably more trouble and money than it is worth, plus you would need to find a rod that would fit the pin you put in and was the right lenth as well. I would just assume that it needs a new crankshaft.

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ebay would be a good place to start, just make sure you only buy from a very reputable seller. Also new crank bearings are a must.

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