i agree with banchetta, plus when a 4-stroke does fuck up it costs many times more than a two stroke to fix. if a 4-stroke blows up u have to buy new pistons, resleeve, valves and got to get the bottom end cleaned of all the shit that goes down there. for a 2-stroke a 50$ borejob and a piston, and ur finished. as for cleaning a 2-stroke crankcase, a can of gas and a wet/dry vaccume cleaner can solve that