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post #1 of (permalink) Old 10-29-1999, 09:29 PM
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Performance upgrades...

I've got a 95 Polaris Indy Sport that I just bought. Its all stock. The previous owner said it could use some new rings but other than that its in great shape with 5500 miles. Is this a pretty simple task? How much will the rings cost me? What upgrades will give me the best bang for the buck? Any inherent problems with this sled? Any advice would be great!
Thanks
Tobias

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post #2 of (permalink) Old 10-29-1999, 11:05 PM
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Re: Performance upgrades...

I don't know how mechanically inclined you are. But I think it is hard to change rings. Because you have to take the heads off and replace the upper and lower head gaskets. And it takes time especially if you don't have a shop or a lot of tools. I had to replace my piston,rings,bearings,and gaskets on a 250 Honda Odyssey. And it was a you know what. Hope you have a fun time. But plan on putting some time into it. catch ya latter,bean

post #3 of (permalink) Old 10-30-1999, 09:02 AM
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Re: Performance upgrades...

never done them on snowmobiles, but at least on bikes, there pretty easy. taking the head and cylinder off is a pretty simple task, and from there its easy.

Keith
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post #4 of (permalink) Old 10-30-1999, 09:35 AM
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Re: Performance upgrades...

I'm used to working on cars and have a pretty good assortment of tools. Even yanked some engines apart (overhauled my land cruiser, cam swaps, manifolds, headers etc 22re's and 302) But 2 stroke is a whole new realm for me! And this is my first sled. Any special tools that you must have to do 2 stroke engine work? Any advice would be greatly appriciated!!
Thanks again!
Tobias


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post #5 of (permalink) Old 10-30-1999, 09:32 PM
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Re: Performance upgrades...

Nothing too tricky,if you're patient and carefull. A few tips: Hone the cylinders lightly with a good stone hone wrapped with a half sheet of 400grit paper, this keeps the stones from catching in the ports. An extra pair of hands is a good idea when putting the jugs down over the pistons and compressing the rings (you ARE aware that the piston goes into the cylinder from the bottom?)Any time you remove the oil injection hoses you should mix extra oil into the fuel until you are sure the injection is working OK (I don't think the injection will self purge a large amount of air from a line). After it has run awhile, take the carbs off and look for oil around the injector nozzles. Actually, 5500 miles isn't that bad. I would be tempted to run it another winter. I just pulled my XLT apart after 7000 miles and found very little wear. True, ring end gap was around .030" but I haven't noticed any loss of power. Same as you, it just seemed like something I should do after so many miles.
Pete

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