Got it Paul - didn't catch that you sheered the woodruff key. That makes all the sense in the world.
Damn....that makes me nervous. My kickstart works fine and but I put a 21mm Dellorto on there because the 18 Mikuni was pretty shot and giving me a lot of problems. The 21 fits on without any real hard mod, although, I can tell it wants a bigger intake to match perfectly. Mine needs a choke which is why it doesn't start with the kick start. Bump starting it works fine, but it's getting harder in the cold weather. I think I'm gonna have to go with a longer suicide choke cable for the carb in the spring.
I have noticed that with the airbox out and the bigger carb that the bike pulls hard all the way to 60. Get's there super fast. Lots of torque. It's great. I can't imagine what a big bore kit would do! I mean...the bike only weighs marginally more than a Puch Magnum.
BDK racing makes an aluminum it which could be scary good. And yeah....they completely suck at customer emails. Ha. It's like they don't want my hard earned money!
Also....bought a 1972 500cc twin Suzuki 2 weeks ago. Just got it running last night. I only own one moped now....my super Moby. Then the AR and the T500. Small....medium....large. It's all I need. Like you, it's all about thinning the heard and going with your favorites.
Man...let's keep this thread going. This shit is awesome.