I installed a bunch of things on my scooter ealier this week and I made a website out of it.
I know casey's gonna bitch and moan....."its definitely a scooter"...but its 50cc...and that makes it more of a moped than a lot of "mopeds". Plus I've got mopeds too, and this might help someone working on a vespa or another bike with a variable trasmission
Check it out
http://www.rpi.edu/~wilsom/Mopeds.html
and let me know if you find any mistakes....I made it kind of quickly.
Matt