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Discussion Starter #1
I have a 2013 sportsman 550 xp. It has recently started smoking under heavy throttle. At idle it does not smoke at all. It does not smoke under light throttle only under hard throttle. Anyone have any ideas about what could be causing it? I've thought about maybe pcv valve, but not sure if this thing has one. Could anything else be stopped up and causing oil to get pushed into the cylinder? thanks in advance for any advice.
 

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Honestly I don't, but I would start by warming it up and running a compression test to make sure the rings are sealing properly and work my way backwards trouble shooting...if psi is low/er, maybe do a leak down test to see if it confirms the compression test..if so, top end tear down will be needed obviously.
 

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Discussion Starter #5
Blueish, it's definitely oil smoke. Yeah IHI I am actually thinking that I am going to have to redo the top end, I'm just gasping at straws and crossing my fingers it could be something else
 

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Any oil in the air box?
 
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