Well, back to the white bike. Putting the G100 in was not as torky as the Briggs. So I have this 3.5 with no mag. So I happen to pull in the Safeway recycle yard and there is a lady with a ' yard machine' mower. It's a 4.5 vertical. I give her 5$ and bring it home, tear it down, alum. flywheel,mag. Compare rotations, cam timing, piston size, umm, same, to me anyway so I put the fly on, mag on, bolt it down, oh yeah, I took my pz19 and put on her too. Vaaaroom! So put it on the bike, with my kinda old time leever clutch. The engine crank has a stubby output,so I could only put a pully on. Besides not having a 3/4 clutch. Runs nice. Got the nexus 3 speed working again.