So I bought a 1997 Yamaha Superjet 701 this year, and the thing ran pretty good until it sank (long story) after it sank we got it running as quickly as we could and that day and ever since the ski has been running boggy. You can stand up and ride it normally, but as soon as I try to get out of the water and hammer the throttle she boggs. We got new plugs, and drained the fuel and put new fuel in it and it is still boggy. Carbs were apparently cleaned this year, could it be them again? Ski isn't stock, b-pipe, head, few other goodies.