motor ran fine at home and at the ramp.As I was leaving the harbor one motor bogged at about 4000 rpm and cleared up.Went trolling for about 5 hrs. and motor bogged off and on.At times it would run good for awhile.Came back into the harbor and ran almost full throttle for a couple spins in the bay and ran just fine.Trailored home and ran motor at home and motor idled very rough.Ran motor next day and motor idled with a slight miss (hicup like) every so often.Tried switching fuel lines as both motors run off different fuel tanks and filters.Same thing.Any ideas what to check next?