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  1. #1
    jajardas's Avatar
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    1995 Polaris SLT 750 are these OEM pistons or not?

    Just picked up a 1995 SLT-750 from the original owner. The MFD showed 48 hours. Had low compression in the PTO cylinder so I dug into it. The first two are the pics of the PTO piston with bad compression. I see the piston is cracked. The second is the middle that looked almost exactly like the MAG. This is the first ski I am digging into. They all have W7A on them are these OEM pistons?

    Thanks for the feed back.
    JJ
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  2. #2
    BlueFishCrisis's Avatar
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    Not sure if they are OEM pistons or not. Why do you ask? Were the heads properly numbered 1, 2, 3?

    I have found with a crack like that usually from a sudden seizure or from hydrolocking, often times the the crank/rod bearings take some abuse. May want to look into their condition as well in that location.....

  3. #3
    jajardas's Avatar
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    Thanks for the reply. I am not sure of the numbering on them. I am thinking they all had a #3 on them but I can look tomorrow. Checked the crank index and that was spot on but will take a look at the bearings tomorrow. I was asking if they where OEM because I was going to purchase a use OEM piston to replace it. I just like my stuff to match. So if it is aftermarket I would purchase one to match.
    JJ

  4. #4
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    WSM pistons are reasonably priced and match the oem ones. Buy a new one.

    They come with new rings too.
    Last edited by K447; 06-07-2014 at 08:14 PM.

  5. #5
    jajardas's Avatar
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    OK, Have the piston/cylinder back in and just have to install the reeds and rebuilt carbs.
    Going to try to put it into the water this weekend with the SL 650 that I just completed the carbs and reeds on. Hopefully I can adjust both sets of carbs on each one.

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