13 x. check engine light?????????????

Had our first ride of the year today and sled ran great first half of the day. but all of a sudden the check engine light would come on and it acted like it was running on one cylinder. shut it down and restart would run great for certain amount of time and do it again. no set intervals. Ran great when check engine light wasn't on.
Was thinking bad fuel? or a bad plug or wire maybe? I gonna look it over soon and ee what I can come up with.

thanks everyeone

Brought it to the dealer today let yA all know what they say.

Thanks Mtnguide it was the Mag side coil according to the dealer