Last time I used it, I ran out of gas. I was near the launch and put it on the trailer. Filled it up wit non-ethanol premium and it sat for a couple of months. This morning, it cranked right up but smoked a lot. And it woud not idle. Got up on plane and it seemed sluggish. After abot two miles it picked up 300 rpm and was running better. The rest of the day, whenever I wouod slow down it would die. It still wouoldn't idle and it started running rough. I'm hoping it's bad gas. The station is not real popular and I don't know how much premium they sell. Any ideas???? I'm gonna drain the rest of the gas and change plugs.