I am fascinated anyone could assemble a motor with a part missing the timing marks. Two dots.
They are hard enough to see if one leaves on the engine cover, and this last go round, we removed the clutch cover (20 @8mm flange head bolts -- gasket is $10.00, or $18.00 shipped) to have a clear view of the crank and the two dots.
I didn't remove the cover the first time, and totally missed the dots, until
@R-III-R Turbo posted his photos showing me "ah ha" for what to look.
I used a section of brass cleaning rod passed down through the empty spark plug hole and resting on the piston. Rotating the engine by hand via the 24mm nut on the crank, watching that rod reach the top, then looking down, the dots were there.
What is less obvious to me is which cycle it is - compression or overlap.
I got it wrong several times, and apparently, there is a fair amount of clearance in a stock motor.