On my 1978, I took off the cover to see about shedding some weight. Hacked the starter off, that was a bunch! 122g. Drilled and cut 10g. from each clutch arm then installed the yellow 1500 GY6 150cc clutch springs. I took all the kickstart goodies out of the cover, prolly sell that stuff. But heck yea, 135g off the crank !
Still gotta plug a couple holes and secure the drive chain guide.
The starter arms removed. I'll have to let u know how it goes. Hopefully good!