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thoughts on this response would be great!

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Old 01-12-2011
lfreng's Avatar
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lfreng's Info
Join Date: Dec 2007
Location: Farmington
Posts: 26
Default thoughts on this response would be great!

I looked at a 97 500 liquid cooled sled today, not sure of exact model. Compression was 125 in each cylinder. I pulled the plugs and mag side seemed kind of rich, even fuel/oil sitting around spark plug. He might of just not had the plug down tight enough. I turned the cranck with the plugs out and heard what sounded kind of like liquid being moved around in the engine. Is it possible the crankcase could have gas in it that is getting in somehow? That is the only thing that I could think of if it is a liquid. Didnt smell of anti freeze in the exhaust. I guess it could be the suction sound of the pistons moving up and down but from memory I dont think my polaris engines sounded like that when I turned them by hand. Any thoughts on that. I would hate to have him buy a sled with a big issue.
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Old 01-12-2011
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Join Date: Nov 2010
Location: Sussex, WI
Posts: 108

If you turn a motor by hand, you should hear the compression strokes. I dont think you would actually hear extra liquid in the crank case.
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Old 01-12-2011
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Join Date: Sep 2007
Location: Stuck in WI
Posts: 7,206

It does kind of sound like water when you start moving air around in the case. But there is also a tiny brass plug underneath each exhaust port that will let you drain fluid from the case. If it runs good I wouldn't worry about it.
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Old 01-12-2011
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Join Date: Jan 2009
Location: Illinois
Posts: 2,056

If has sat and has a bad needle or seat it could fill the case with fuel..

also had one with a bad fuel pump that sucked fuel in the pulse line once running....

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