Thanks cam.... I've been reading up heaps on them and this missues just rolls her eyes lol but the kids n me love em

the white frame bike seems To have twice the pick p as the black framed one so I'm googling and Fourming the clutch set up and workings I've tried just about every suggestion short of pulling the hole assembly out with a puller and replacing the clutches as they still look good
If you mod the reedplate and reedstopper,,remove the head,,add 4 windows in the piston side towards the transfer ports,,polish the piston,,take a dremel and widen the exhaust port at the cylinder 1/8" on each side and raise it twice the gasket thickness in the center and slope down to the newly grinded in sides and Yamabond down the head without a headgasket and add 4" to the center of the exhaust,,lighten the flywheel add a rocket key and lighten/mod the clutches aswell as mod the stock carb then rejet youll be up to par with that other bike as far as power...
If you want to surpass it Id add a 5th window to the piston and grind in a 3rd port in the cylinder aswell as get a hp pumper carb retrofit kit and get rid of that crappy floater carb..............