I have a 1990 Marlin Mini-Day Cruiser W/ MerCruiser Bravo-One Outdrive with a GM 454 Motor. It has two fuel tanks. When we recentlyt took it out this weekend there were some issues. When I was running it on the left side fuel tank it would sputter and stall and create a lot of white smoke out of the exhaust pipe and then there would be a strong fuel smell comming from the back of the boat. When I switched to the other fuel tank everything was running great with no problems whatsoever. Can someone please help