Skidoo Rev 800 121 clutching

[tahoejareddavis]

I removed a 600 motor from 2004 rev 121 track, and installed a 800 motor. I wanna use the primary and secondary off the 800 motor that was in a 151 track. Does anyone know what springs and weights i need to use. Or will the 600 motor clutching work with the 800 motor. Help!!!