Question about Polaris ATV
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Posted on Jan 02, 2017
My Sportsman runs bad when heated up, but if you add fuel it runs fine again. I had a pick up that had an internal fuel pump like our Sportsman's and it did the exact same thing. It turned out being the fuel pump was worn out due to a plugged fuel filter. Forcing the pump to fail prematurely. I found I had bad fuel in my Sportsman and am going to replace the filter and the fuel pump. I also checked my plugs, MAF sensor, and Air filter, they were fine.
Posted on Sep 16, 2009
check or change oil and clean around engine fins sound like engine getting to hot and vapor locking fuel
Posted on Oct 05, 2009
Vapor locking? Check the fuel lines to see if they are too close to the exhaust manifold/pipe. Check for spark when it is hot. Be careful when pulling plug wire as to not get your hand burned.
Posted on Oct 14, 2009
although the plugs that were in it weren't very old, one plug must have broken down, because after putting new plugs in it, it runs ok now.
Posted on Mar 07, 2010
Tips for a great answer:
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If you have a vent hose coming out of your gas cap make sure it is not kinked. A kink in the hose will cause a vacuum in the gas tank and very slow gas delivery to engine, which would become apparent at higher engine rpms including after warm-up.
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