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Hello, I'm currently having some issues with the chain in the chaincase, on the Polaris Indy XLT Touring (1996). The chain isn't tight enough, as you can see all the slack on the left side in the picture below. I've tried to tighten it up with the bolts, but it just pushes it towards the gear in the middle and eventually hits it. Still doesn't do much at all. I'm wondering how I can get rid of all of the slack, as tightening the bold doesn't seem to do anything.



 

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It looks like the chain is stretched or the wrong chain for the sprocket combination is being used. I'm not much help on the reverse chaincase, I've never had a Polaris one apart. But the adjuster should definitely be tightening the chain way before it is at the max. It appears to be a 66 pitch chain which is correct, so that would leave stretching if sprockets have not been replaced.

You may be able to compare your chain to a new one at the dealer to confirm yours is longer.
 

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Discussion Starter #3
It looks like the chain is stretched or the wrong chain for the sprocket combination is being used. I'm not much help on the reverse chaincase, I've never had a Polaris one apart. But the adjuster should definitely be tightening the chain way before it is at the max. It appears to be a 66 pitch chain which is correct, so that would leave stretching if sprockets have not been replaced.

You may be able to compare your chain to a new one at the dealer to confirm yours is longer.
Okay, thanks! It's probably stretched quite a bit, as we don't know the last time its been changed.
 

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Sprockets are correct... That chain is stretched out badly and needs to be replaced. Given the dirty/discolored appearance, I would be suspicious of it having been run with little or no oil.
 

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The chain is probably not so much the problem as is the upper sprocket. As near as I can count, the teeth are 20 as they should be, and the chain appears to be a 66 pitch, which is standard. However, the upper sprocket is very worn which is obvious from the 'swept' appearance of the teeth. Additionally, the center sprocket shows a lot of wear as well. Chains don't "stretch" so much as they wear inside (which increases the effective chain length). And any time one of these components (Chain, main sprockets) fail or wear excessively, I would replace all three.

But there is so much slop in the pictured stuff you have there that I'd also wonder if you have a totally failed bearing on either the jack or the drive shaft. (You have more room above the upper sprocket than seems normal.)
 
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