Here's the full story - and maybe this will help everyone be able to help me better: When I purchased the boat the previous owner started the motor for me and it seemed to start right up with no problem. Even after I got the boat home I tested it myself a few times through the week and it would seem to start and run without any issues. A week later I took it o the lake and got it in the water and it didn't even want to start. After continuously trying it finally fired up but would only run at about half speed even with full throttle. I would also have to halfway choke it for it to stay running. I knew the previous owner told me he never cleaned the carb or rebuilt it in the 2 years he owned it so I assumed it needed to be done. I purchased a new carb rebuild kit and did it in a few hours. Started right up first pull after that and sounded great. Sounded like it had much more power than before. With my new confidence level after rebuilding the carb I took it back to the lake this past weekend, launched the boat and got in and pulled the pull cord and nothing. Wouldn't start. I realized that at home I had the fuel tank in the seat instead of on the floor, so once I moved the tank to the seat beside me and after a few more pulls of the rope, it started up. I stayed close to the dock but wanted to ride around a bit, and while at full throttle it would all of a sudden drop power then kick back up, then drop power again or sound like it was about to die. I noticed if I throttled down to a medium speed it would go without a problem at a steady pace, but on full throttle it would seem ok for a minute, then drop then rev, then drop then rev. I figured since the fuel tank is so old it has turned yellow, and the no telling how old the hoses were - I decided to purchase a new fuel tank, new primer bulb, and new connectors for everything. I was assuming maybe between the old fuel tank and hoses and connectors maybe air was getting in, or the tank hose inside the tank could be giving out or getting clogged or any of the other hoses so that's where I decided to start. Funny thing is that back at home in the trash can of water it will start and run perfectly fine. Seems like it's just in the lake or probably in drive at full throttle. I hope some of that maybe helped a little more. I just want to have a plan B if it's not the tank and hoses. I am also going to open the fuel pump and clean the screen then replace all the hoses and fuel line.