"I have a 1995 Bass Tracker TX-17 with a Mariner 40 ELO. We were in the water for about three minutes when the motor suddenly seemed to loose power. We could keep the engine running in the full-throttle position but the engine would just chug. We shut it down for a bit and then started the engine and it ran fine for about 3 minutes until the problem resurfaced. Since this problem we: cleaned both carbs, changed fuel filter, new plugs, and we still have the same symptoms. When running, it runs great. I did notice a difference in the spark plugs we removed, #2 & #4 seemed much cleaner. I think I have an electronic issue, just not sure what. Please advise if anyone knows...Thank you!"