took the boat out first time this yr, it ran great last yr. and ran great in the yard on muffs. But i cranked boat in yard the night before, ran good, next morning put boat in water cranked and was running good, but was in idle zone so was going pretty good and motor started running bad, idle higher and died. Tried to start it back and nothing, chocked and nothing, primed and chocked and tryed to start. so i had to reajust carbs idle screws and ran good, at top speed still sluggish. i was wondering if idled to high would make it motor run sluggish? Thanks.