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  1. Polaris Sportsman
    I have a 2004 Sportsma 600 that I am doing a top end on. After inspecting the cylinder bore I found that it is 79.5mm instead of the 76.5mm standard. I am looking for oversized pistons however I cannot find any. Does anyone know I they sell them? Also I was looking to see if a 700 cylinder would...
  2. ATV Repair and Maintenance
    Our 03 sportsman 400 was left untouched for some time so we took it to a local repair shop to get it back in working order. When we got it back we drove it not more than 5 miles before it started smoking, turns out whoever worked on it forgot to put oil back in it. The piston and rings burned up...
  3. ATV Repair and Maintenance
    Good morning everybody. I am the proud new owner of a 2000 Polaris Xplorer 400 4x4. This is my first ATV and I bought it cheap from a friend since it wasn't running. I drained the gas tank, changed all the fluids, cleaned the carb, put in a new battery and starter relay. She fires right up and...
  4. ATV Repair and Maintenance
    Hi, this is my first time on this forum and need some help. I need to rebuild at least my top end. I have everything tore apart and out except the crankcase. I'm trying to do it myself because I want to learn more about my bike and motor and add a few extras to it. 1. The rod on the crankshaft...
  5. ATV Repair and Maintenance
    I am in the middle of a rebuild and I am a little dumbfounded with the head gasket. I went cheap and bought tusk, and the question is.... The head gasket has a raised ridge around the entire head gasket. Does this bump face up or down..I have googled this question and only found responses for...
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