I'm trying to revive my '78 cb400... I bought this thing in highschool and I or one of my brothers has had it ever since... I don't have a diagram, nor do I have a printer and I am really unsure how to diagnose gremlins. I have some functions, no cranking... I need to plug in a set of signal lights at the back to see if they work. This poor thing hasn't run in years, I have the carbs all apart for cleaning.. unfortunately my "workshop" is in utter disarray because I have been trying to insulate it. It is a mess beyond all reckoning, but I should have it functional again with one more good weekend of effort..