I frequently stumble upon Technical sites that have good information to move my projects along so here are some of the ones that have been most helpful.
Ox Motorcycles Tech Page - Various vintage Motorcycle manuals and carb charts
Carburetor Jetting - Diagrams and explanations on carburetor jetting
Spark Plug Reading / Chops - All the information you need on how to read what your engine is doing (rich/lean etc) based on spark plugs
Manitoba Vehicle Safety Inspection Criteria - PDF of the official vehicle safety inspection rules via the Manitoba Highway Traffic Act (Motorcycles on Page 26)