Leaving here for when I'm super old and I wanna build a sick hobbit again. Also for those who are like me (slightly mechanically inclined, don't know nothing about mopeds)
Job for today: Boring out hobbit cylinder to accept the Stage 6 70cc kit using the treats adapter plate, you will need to split the cases n stuff. Remember you used a just a jaw puller. NEVER just use a jaw puller, and a three jaw puller at that. Get the right tools next time. (i.e. clutch puller, a puller with TWO jaws, torch, bearing splitter)
Attach the plate and use a sharpie to mark where you're going to cut
Begin cutting. I used a cylindrical carbide bit with a round top on a dremel. Maybe invest in some legit dentist equipment? Or a real porting tool? Idk do people use dentist equipment for porting? anyway moving on....it'll be rough at first with the carbide bit, but you can use a sanding drum and wire brush wheel to buff it out and make it smooth. More smooth=something good?
Voila~! Just be patient and be steady with the dremel (or whatever you got), one bad slip on those mating surfaces and you might be fucked