question about measurements.

[Warren]

i have a question about a few measurements or more of what points to measure from on certain parts.


where do i measure from on the crankshaft to determine the stroke?

where do i measure from on the TB to determine what the bore of it? inside near the butterfly or at the opening?

[Warren]

well i got the TB measurement figured out. i would still like to know about the crankshaft though if anyone knows.