I have a 91 Johnson J150GLEIS motor and today while on the lake after starting it stuttered and didn't want to stay running. Then when it did run it misfired, and then it finally shutoff and wouldn't restart again. After floating for a long time I remembered I had a pair of pliers on board so I removed the plugs and saw them covered in fuel. After I dried them off and went to crank it up in neutral and full throttle it fired up and ran for a short amount of time before flooding out. I believe either the float needle is stuck or the float itself just went bad. Several hours later after finally getting towed in and getting home it cranked up and ran for a short amount of time before flooding out. I looked for a rebuild kit so to speak because the colors on the gaskets for each carb bank are of a different color. One has the original gasket and the other side has an aftermarket gasket. It tells me someone before me did a half a$$ed job in rebuilding the carb so I'm asking would be it better to try and find a rebuild kit and just rebuild the whole carb or just try and fix the float issue. Is there a way to test to ensure i'm attacking the right symptom and not just wasting my hard earned money and time? Thanks all.