Hello all, Just bought me a scrambler 500 4x4. Picked it up at a very nice price and started it up and drove it up on the trailer. Has no power and if you throttle it it backfires through the carb. I figured it to be a lean backfire (carb needed rebuilt) or a worn cam. I have read every thread in the Scrambler section to get a feel for what to watch out for and how to fix most issues. I torn into it and basically have removed everything down to the frame. Its overall in very good shape. No rust and very clean after the power washing. I pulled the motor and broke it down. Sure enough, it was a worn exhaust lobe on the cam. Almost completely flat. I put in a order for parts and am waiting on them now. I also ordered a trans shifter fork. Worn on the surfaces and wouldn't engage forward 100%, more like 85%. He said something about it would pop out every now and then. Everything else checks out fine.
I will get some pictures up tomorrow. I am cleaning everything else up piece by piece as I go along waiting on the parts. The new parts include a new cylinder (due to some scuffs), new weisco piston kit(standard bore), top end gasket set, new cam, carb rebuild kit, front outer cv boot kit, trans shifter fork, and of course a Polaris Scrambler manual.
Looking forward to getting it back together and seeing if all I heard was true about these scramy's.