I have a problem after I let my sled idle it seems to be fouling plugs, by to much fuel or something.I checked the choke but it seems to be Ok not on at all.If I sit for 1or 2 minutes when I hit the throttle there is no power until about a 1/4 mile .Once it clears it runs fine no other problems.If I let it idle for 5 min, it wont move .I changed the plugs and I will try it tommorrow but you should be able to let a 4 stroke idle for 1or 2 minutes with no problem.It was cold -2F . I have 400 miles on machine and it did not do this the first 300 miles.Do you guys think it could just be bad plugs or something carb related any help would be great as I leave next week for a one week trip in North Bay.