I have a new to me boat that came with a 1997 9.9 Yamaha kicker. The motor seems to run fine for a while then will chug for a little then stall. I can start it up again and run fine for a bit then the same thing will happen. I thought it might not be getting fuel so I tried priming the bulb when it would start sputtering but it stalled anyway. the gas line is connected to my main fuel tank with a tee fitting from the main line. Not sure if it has a low oil or overheating sensor. Oil levels are fine and I changed the impeller a couple of weeks ago. I'm not familiar with 4 stroke outboards so any help is appreciated.
Thanks, Rick