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  1. Lost 4th gear - engine rebuild

    Polaris Predator
    Hi guys. New here and Polaris driver for 2 years now. Bought a used Predator 500 from 1st owner, 2005 with first tires on it. Driven for 2 years - approx. 200h and 15-20 oil changes - flawlessly. Approx. 2 weeks ago while shifting to 4th lost the gear, a little rattling for few seconds in that...
  2. Stock boresize

    ATV General Discussion
    I am going to be buying a new piston and rings for my 2002 Polaris Trailblazer 250CC. I just wanted to know what the stock boresize was for that bike so I get the right size.
  3. Crankshaft and Pistons 04 sportsman 700

    Polaris Sportsman
    Hello everyone. 1st time poster. Recently traded for a 2004 sportsman 700 (carb). Was plowing a couple of weeks ago and a loud knock started and then the motor locked up. After pulling the motor i found out the right connecting rod was stuck. To top it off it appears as though the engine had a...
  4. 02 sportsman 500 front brake caliper

    Polaris Sportsman
    I have a 2002 sportsman 500 and the previous owner used the front brakes until there was nothing left of the pads and the piston was rubbing against the disk until its wore all the way through and fluid came out. i see that polarispartshouse.com sells the piston & seal kit but i was wondering...
  5. 01 Mangnum Motor Trashed, Help!!

    ATV Repair and Maintenance
    Hi, I picked up a 2001 Magnum 500 with a bad cam. When I went to repalce the cam I found that the piston and rings were shot, the piston pin seized in the rod and was scraping front and rear. I was going to do the piston, ect, but now I am wondering if the rod is shot too maybe I should try and...
  6. trailblazer 250 adult ride or no?

    ATV Performance Modifications
    ok look i know its a small machine however it came at the right price ($250 running with rear bearings out) now I rode it for the past year and it has been reliable for the most part but also a pooch...I'm 350 lbs... beings as this is an air cooled motor how much can be done before it starts...
  7. What happened to my piston?!

    ATV Repair and Maintenance
    Hey guys. I bought a 2000 Scrambler 400 (2x4) and was told all it need was new rings. He told me it had been bored to an 85mm. When I took the top end off this is what i saw. The first picture is the front of the piston (the side facing exhaust) The top left of the piston has a chip in it...