Early 70's Yamaha L1 engine?

OMG D:

New member
I have a 100cc twin from the early 70's and was wondering if anyone out there knows how the alternator is wired up. or where i can find information as to how it's wired up.
My battery will undoubtedly go flat very fast as it has dual coil ignition.
any help would be greatly appreciated =D
 
Back
Top