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Discussion Starter · #1 · (Edited)
Hello all, I’m rebuilding an engine. It’s a 2013 Sportsman 500 ho. I’m wondering if the timing chain is stretched? Looks like it might be to me. I have never worked on 4 wheeler.
The tensioner is all the way out.
Any help would be appreciated.
I have attached some pictures.
I will attach a video if I can.
After it get it back together and running I’ll post my rebuild.
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Chains don't stretch, they wear out - when you say the tensioner is all the way out; do you mean the tensioner pusher is all the way out of the engine or that pusher is installed, but is out as far as it will go?

If the pusher is out of the engine, install it and see how hard it pushes on the tensioner to take slack out of the chain. From the looks of the sprocket, the chain, both sprockets and the tensioner all need to be replaced, then the tensioner pusher will have the chain tight when inserted into it's hole with about 1/2 an inch between the tensioner pusher and the cylinder. At that point the pusher will need to be reset, installed and assembled.
 

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Discussion Starter · #6 ·
Chains don't stretch, they wear out - when you say the tensioner is all the way out; do you mean the tensioner pusher is all the way out of the engine or that pusher is installed, but is out as far as it will go?

If the pusher is out of the engine, install it and see how hard it pushes on the tensioner to take slack out of the chain. From the looks of the sprocket, the chain, both sprockets and the tensioner all need to be replaced, then the tensioner pusher will have the chain tight when inserted into it's hole with about 1/2 an inch between the tensioner pusher and the cylinder. At that point the pusher will need to be reset, installed and assembled.
I installed the tensioner pusher put the spring in, put the middle bolt in then took the tensioner back off the cylinder and it was extended as far as it could go. I’ll see what it looks like after putting the new parts in. If I have to buy new sprockets then I will. I will keep you updated.
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If your 2013 Sportsman has been running well but suddenly starts making strange noises, it could be that the timing chain is stretched. This isn't necessarily a cause for alarm, as it's a fairly common issue with this model year. However, it's definitely something you'll want to get checked out by a mechanic or Kemimoto to ensure that it isn't indicative of a more serious problem. In most cases, a stretched timing chain can be replaced relatively easily and inexpensively. However, if it isn't caught early enough, it can cause major damage to your engine. So if you think your timing chain might be stretched, don't delay in getting it checked out!
 

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If your 2013 Sportsman has been running well but suddenly starts making strange noises, it could be that the timing chain is stretched. This isn't necessarily a cause for alarm, as it's a fairly common issue with this model year. However, it's definitely something you'll want to get checked out by a mechanic or Kemimoto to ensure that it isn't indicative of a more serious problem. In most cases, a stretched timing chain can be replaced relatively easily and inexpensively. However, if it isn't caught early enough, it can cause major damage to your engine. So if you think your timing chain might be stretched, don't delay in getting it checked out!
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................. it could be that the timing chain is stretched. .......... a WORN timing chain can be replaced relatively easily and inexpensively. However, if it isn't caught early enough, it can cause major damage to your engine. So if you think your timing chain might be WORN, don't delay in getting it checked out!
CHAINS DON'T STRETCH - THEY WEAR AND THE WEAR IS PERCEIVED AS STRETCH DUE TO IGNORANCE
 
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