- Companion cylinder method of finding TDC (from Mikestem) -- Take the valve cover off, watch #6 rockers. and as you turn the engine over by hand (take plugs out first), watch the last two valves. When the last valve (exhaust) is coming back up and the 2nd-to-last valve (intake) is just starting to go down, Cylinder 1 is at or approaching TDC.
- Now watch for the proper mark (check manual, I think its a "TC" or something) in the flywheel window, and stop turning when it's under the pointer.
- Take the cap off the dizzy and verify that the rotor is pointing at #1 wire, and the points are just barely starting to open.
To set timing you'll be using the BB and window pointer. You can use a 12v timing light to dial it in if you attach the + and - leads to a 12v battery and put the wire clamp on the #1 6v wire.
I also find it helps to mark the BB and the pointer with a white grease pen (I marked the other flywheel symbols with different colors).
