Originally Posted by Cedric hey guys, Have a look at this: Motoman 393 Go to tech articles, how to YZ time and look at the last picture. He suggests turning the cam one tooth clockwise, the result would look exactly like mine does... What is the right thing to do here, I'm getting confused now. ACCORDING TO THIS, YOU MOVE THE EXH CAM ONE TOOTH CLOCKWISE. THIS WOULD MAKE IT 14 LINKS BETWEEN MARKS RIGHT? I THOUGHT THE YZ ONLY HAD 12. THIS DOESN'T MAKE ANY SENSE, SOMEONE HAS TO BE WRONG!