I just bought this ski at the end of last year. Went to launch ski a couple of weeks ago, would turn-over, but not start. Tightened up the battery connections, started right up. Went out to start it a couple of days ago, would turn over, but not start, ended up running the battery down.

I tried turning the fuel supply from "on" to "reserve", but but didn't seem to make a difference.

Have not checked the spark plugs yet but not sure what else to check after that. Anyone have a suggestion? Is there a master shut-off for the gas that I may have missed?