Ok, so I just got this new 17' Carolina Skiff from my brother in law's cousin. It has a 2004 50 hp Honda 4stroke. Everytime they used it, my brother in law went and she was always smooth. Then it sat for about 8 months and then I bought it. So before I used it I changed the plugs, fuel filter on the engine , added one to above the tank then took her for a drive. In gear at its lowest idle its rough. Bump it up and its fine (1100 rpm range). So idling along at almost 2000 rpm it will stall unless I either go at a snails pace moving the throttle. (1000rpms per 2seconds) or I have to floor it, and then its fine all the way until i get it down to idle again. So i go home and there is some crap in the tank so i had to drain and clean very very good. New filter and reinstalled. Next test drive same thing. She Fires up and will stay running at 900rpm out of gear. With the gear shift in neutral it will rev up and down no problem. only under load does it stall. Any Suggestions? carbs maybe?