Re: carberators
There are many reasons a boat will not plane and carbs needing rebuilding may or not be one of them. Did this problem just appear? Do the simple stuff first like checking/changing plugs, making sure the engine is getting fuel, compression is OK and all cylinders are contributing to the effort. The worst thing you can do is take it to a shop, tell them to rebuild the carbs and then still have the problem. Tell them what the problem is and let them troubleshoot it. For all you know, the boat may have a bunch of trapped water in the hull that's not draining.