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    Miles before rebuild?

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    • Member since
      August 2005
    Miles before rebuild?
    Posted by vtindy on Monday, August 18, 2008 8:09 PM
     What is the average miles on a 2stroke/compare too 4 stoke before rebuild? Just courious i have 7000 miles in my 600 prox2. My friends say apporx 10000 i will have too rebuild the top end. But the 4 strokes go longer before rebuild. Nobody in my group of  4 stroke riders has close too 7000 miles on their machine. Will time and miles prove them right? Thanks in advance
    • Member since
      August 2008
    • From: Tug Hill
    Posted by Indy650 on Wednesday, August 20, 2008 9:03 AM
    it depends on how you treat them. 2 stokes can last a very long time if properly taken care of...yes in most cases 4 strokes last longer but when they do go its usually a catostrofic engine failure. normally a 2 stroke you can throw in a new set of rings and go. the main thing is to keep your primary clutch in good shape because a worn clutch vibrates and destroys the crank bearings. also keep the oil injection turned up a little spending a touch more on oil is worth it. my xc 800 has 7000 miles on it and i tore it all down and the whole engine is in exellent shape absolutly no bearing noise no scores and still hone marks in the cylinders
    because one stroke isnt enough and 4 strokes waste 2
    • Member since
      August 2005
    • From: Norway
    Posted by ivar on Wednesday, August 20, 2008 12:16 PM

    A 4-stroke will go much longer  between rebuilds, however a 2-stroke you can do yourself in the garage, a 4-s requires much more work.

    I've got past 10000 miles on my 02 xc800, and replaced both pistons at around 5000 when an exhaust valve took out the pto piston and cyl. Thinking of replacing pistons before season starts I figure its cheaper to swap them before they crack :D


    FromWhat I read over @ the mountain guys prefer to do the top end at amuch lower mileage,as they run their machines much harder

    • Member since
      November 2006
    • From: IL
    Posted by MorSno on Thursday, August 21, 2008 12:40 PM
    I sold my 02 XC 800 with 8000 miles and still running great.  My buddy still has the sled with ~9000 miles and still running great. 
    • Member since
      November 2007
    Posted by dragonqq on Saturday, August 23, 2008 2:59 PM
    My wife is still riding my 02 xc700 with 19400 miles. I take it once and a while still pull hard,starts 2 pulls. I thinking rebuild soon but why fix it if it not broke
    • Member since
      August 2005
    • From: Norway
    Posted by ivar on Sunday, August 24, 2008 5:58 PM
    19400 - thats the highest mileage I've heard of on a big block twin.  Beer [B]
    • Member since
      November 2005
    • From: s.w. mi
    Posted by likinit2 on Thursday, August 28, 2008 12:11 AM

     ivar wrote:
    19400 - thats the highest mileage I've heard of on a big block twin.  Beer [B]


    I pulled and replaced the Pistons out of my 800ves at 8000 miles and they still looked like new. The rings did show a little wear and no blowby and the cylinders were excellent. I have 11000 miles on it now and it runs great.

    • Member since
      August 2005
    Posted by SNOWTRAX on Thursday, August 28, 2008 6:29 AM

    1998 xc7 with 13500k on her and 6500K on a 02 xc7, both running strong with good and great compression in that order. Polaris Liberty's are the best out there.


    • Member since
      July 2005
    Posted by jasper on Thursday, August 28, 2008 10:27 AM
    I think much to do with the longevity of a 2 stroke sled has to do with how and where its ridden as I've seen many of these sleds up in Canada with well over 10,000 miles on them. I feel how the sled is stored over the rest of the season plays a big part also, and it doesn't hurt to run a bit more oil through them. Polaris liberty engines do hold up pretty good. I've seen many Ski-doo's also with high miles with no rebuilds either. Seen several older 4 stroke Vectors with over 20,000 original miles on them to, all ridden in Quebec.
    • Member since
      October 2018
    Posted by mdh on Wednesday, October 24, 2018 3:31 PM

    I have had 4 new sleds (Polaris) since 1992. 92 340, 96 500 fan, 98 500 liquid and my current sled is a 2005 500 xcsp. I don't remember the mileage on the 92 when I sold it, but the 96 and 98 had 12k and 14k miles respectively and were running strong when I sold them.

    The 05 I have now has 16k and runs great. I'm planning to use it this season, and my goal is 20k.

    I run in Michigan, 1250 miles per season on average. I ride a combination on and off trail. I ride hard but not abusive. I run regular fuel and the "gold" Polaris oil.

    In the summer I Stabil the fuel and fog the motor. It's garage stored. I do the carbs about every other year. I have had the drive clutch replaced, I believe one time. I do most of my own basic maintenance, but most years I take my sleds in for to my dealer (they are GREAT!!!) and let the tech put his eyes on it. My motto is: On the trail, never stranded alongside of it. And also, fix it before it breaks. Has worked for me for over 25 years.

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