Now there's a conundrum. I don't think the motor would have run if it was at-all out, or installed wrong.

Cam-degrees are 50% of crank degrees, (how many cylinders is the thing?) so it may take more revs than 10.

Are you at TDC on #1 when any of the marks line up?

Not sure what the coloured links on the chain are about...that's a new one on me.