Snowmobile bogs down at full throttle?

Rob

Member
Hello all
I have a XC 600 2003 Polaris sled that is having some troubles. Sometimes it bogs down when using little throttle, then it is fine between 20%-80%, then it goes back to bogging down when I pin it. Sometimes if I keep it pinned through a field, it will pick up and fly, then bog down again.

I have new spark plugs, premium gas, I think it could be a piece of ice in the gas line, or water in the gas. But we've used a whole bottle of dry gas and ran the sled for 2 hours so I've ruled out that.
Not sure about the vacuum lines.

It just started happening last night. We rode to get gas and it was fine, fine when we rode back from the gas station. Left them outside, and 4-5 hours later we went riding again and it's when it started happening. I'm almost convinced it's something in the fuel lines, but who knows these days.
If there is not enough antifreeze could it make it bog down?
 
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