alternator rotor

hey guys, i have a79 650 motor sitting here and i need to get the rotor off it. I don't have rear axle so that's out. Does anyone know the thread pitch of the bolt used to take it off?

Thanks

16mm/1.50 metric pitch - a 650 steering stem top bolt will fit.

Also if you try the "bearing in the hole trick" make sure you use a big bearing or you will mes up your crank. Don't ask me how I figured out that one! :whistle:

thanks for the help guys. i have to go out and get that bolt now.

The bike is across the state so i don't have any of the bolts.