Cool, it's nice when you find the source and solve the problem. On Wednesday I will be running my SW again and hope to find a good engine tune. I have put tight fitting jablo (expanded polystyrene) in the bow (in front of the fuel tank) and I centrally sandwiched 3 metal car wheel studs for a total weight of 8 ounces in the jablo. Carved a cool tight place for them in there. This has moved the center of gravity of the boat about an inch forward towards the bow, thus I'm hoping it will help with riding stability at high speeds. The jablo will also help the boat float in case of it flipping. Last time I went to run my SW my one way bearing died so could not start the engine. Was looking up a youtube demo of how to start the engine manually with a belt, could not find any. Do you need an electric motor to turn the belt or can you do it manually by hand? Coz I like the idea of a belt around the flywheel, no mechanisms to go wrong. Simpler is better.