So I bought a 94 sp 3 years ago and besides needing a starter and relay I’ve had relatively no other issues. This weekend I brought it out of winterization, put fresh gas, gum out, and Sea foam in the tank. She started right up with a fresh battery and ran all day perfect. Near the end of the day I took it out then it sat at my anchor for a hour. When I went back to start it up and drive it back to the marina, no go. Just kept cranking. Fuel was fine had a little under half a tank. Very confused why it was running perfect one moment and not the next. It is definitely due for a carb clean but I’m not sure how to go about that. Just confused why it would run good one second and just turn over the next. Any help would be appreciated. Also read about how the fuel lines can be gross and full of green goop so carb, plugs, fuel lines are my first options. Let me know what you guys think.