Help with 200hp merc running rough.

[CharlestonSC]

Thanks, I dragged it back to Greenville, I'll see if I can tinker with it through the week.
I checked spark on all plugs, they looked good.
Wondering if because it sat for 6 months without running if the carbs are gummed up, and if that would make it run rough?
I did put fresh gas in it. and changed the filter on the water seperator.
let me know what you think.
Thanks