Bought a pontoon last year equipped with a Suzuki 140 hp on the back. Boat has a water/fuel separator. Boat starts just fine, runs great most of the time. At WOT, sometimes it starts running rough and missing. It has never produced an alarm. I’ve changed the water/fuel separator twice since I’ve had it. I add some stabil at every fill up just in case. Thought maybe bad battery connection, tightened that. Maybe bulb/fuel line issue? I’m really at a loss here. Has anyone experienced same issue?
