or does it not matter on the first cylinder as long as piston is at top?
Ding, Ding, Ding, we have a winner!!!
The ignition fires on every stroke, so the cams determine if it is on compression or overlap. Do the front one first. Then turn the crank forward (about 3/4 turn) until the rear is on TDC.
"Dad, can I get a motorcycle when I grow up?"
"Son, you can't do both"