Go easy on me please...first posting! And yes, I really should buy a manual. I'm doing the top-end on my Son's 2000 PW50. I've got a Weisco kit. What should I torque the head bolts to? Which way should the arrow point on the piston? The stock Yamaha piston arrow was pointing down (forward?) but that doesn't seem right to me. Finally, what is the break-in procedure for a new top-end on a PW? Any other hints or advice would be greatly appreciated. Oh, has anyone ever put a lower (numerically higher) gear set in their PW? What does it cost, where can I get one? Even with the throttle adjustment screw almost all the way in, the bike is too fast for him but then it won't climb any kind of hill either. Thanks.