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07 sportsman 500 wont run

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  #1  
Old 02-19-2019, 07:42 PM
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Default 07 sportsman 500 wont run

I accidentally posted in the regular polaris forum, I dont know how to delet it.

hi opt,

today I was towing the kids around in the snow with the wheeler and just as the one kid went flying off I let off the throttle and the wheeler died. I immediately tried to start it and it just clicked like something was set up, the second time I turned the key it turned over fine. i tried to start it on starting fluid and it wouldnt run on that. so I looked at spark. it seems to be blue then orange and the first second of trying to start the wheeler i see lots of blue sparks then the spark slows down and start turning orange and blue. does any of this ring a bell?
I am going to check compression hopefully in the morning.
thanks
 
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Old 02-20-2019, 09:45 AM
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I checked compression and looks like I only have 40 psi... not good. does anyone know if it is rings or the head?
 
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Old 02-20-2019, 03:07 PM
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just an FYI, OTP has pasted away. Look at my sticky notes on the top of the Polaris page. you also might have a stuck open valve causing low compression
 
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Old 02-20-2019, 08:31 PM
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Whitetailhunter If you think its a valve stuck open you might try a dose of Seafoam in your gas Ive see it work on small gas engines. Jut a thought.
 
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Old 02-21-2019, 03:22 PM
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... or a busted timing chain. Not that familiar with your machine, but can you look in the valve adjustment hole and see if anything is moving when it's cranked?
 
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