Northrupc47
New member
Hi all, I recently acquired a pontoon boat with a 90hp outboard. It idles perfect, but when I give it throttle, it sputters and wants to die. I have always had 2-strokes and would think fuel pump, but these motors seem a lot more complex. The boat had been sitting for well over a year. I did add 10 gallons of fresh, no ethanol fuel to it. Any help or ideas are greatly appreciated.