Did I foul my plugs?

Backwoods M Max

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Joined
Mar 31, 2011
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New England
I got my clutch tuning done yesterday, took weight out of the tips and got my rpm's up where they need to be.

Left ft the sled outside last night and went to start it up and left it on half choke to go get the garage opened up. When I came back to the sled the snow under the exhaust was black and I flipped the choke off and it rolled grey smoke for maybe 30 seconds before it would even move. I rode around he yard a little and it would only pull about 7000 rpm.

I didn't have time to pull the plugs. Are they junk now or was the motor still loaded up because I didn't have a long pull to hold it WOT?
 

These were the same plugs I fogged and rode it on for the last 2 seasons, dousing them may have put them over the edge. It's about time to order another box of BR9ES anyways.
 


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