Originally Posted by neo1piv014
The BST Bible was what I went off of. That was where I noticed that my spring was missing a part. I just didn't see where to get at that float needle thing. After many frustrating experiences, I've learned better than to try forcing small, plastic parts around. Now that I know they come apart, however, I can check them out. I'm also looking at getting a TM40 for this bike before too long anyways, so this might all be a moot point, but it's always good to learn.
You'll have to learn how a carb works, one way or another.
Something like this from the BST-Bible:
Hides in here on our DRs.