kept fouling out plugs after 30 min, then died on the weekend with a rattle (uh-oh!) found little pieces of metal in exhaust manifold, was told that 650 can be easily switched to 701 by someone, then someoone else said no one will exchange a 650 for a 701 and that you have to change the needles in the carb and the prop set-up, does anyone know of a good jetski mechanic in the windsor ontario area who doesn't charge an arm and a leg? Doesn't look too difficult to work on but as usual time is short, and I know a bit about working on cars but this is a different ball game.