Sounds good, didn't know that about the engine. I don't think rebuilding the engine is that much of a chore. I've read over the wiki and feel like i can manage it. I have a friend that is head moto mechanic at a shop near by. He's always been there to help when i get myself in a pinch. Will definitely match the intake when cases are split.
I could definitely feel are coming from around the head, i was just revving it on the center stand. I will look more closely to see if it was from the flywheel or an actual leak.
I've looked over the carb, the plastic shim is in there. I'm unsure if there's a o-ring in there. I've read the 'fix my vespa leak' threads though. Didn't want to remove the shim last night. The o-ring go in first then the plastic shim right?
It did have more power after i messed with it, so an air leak on the intake side is still possible.