It’s just the marks. Not how to align them. It’s kind of a trial and error process until you get them all right on. For instance, if one of the cams are one notch off, you have to loosen the tensioner bar and hold the cam back while you move the chain one link over. Ect… this is how it looks when it’s all correct.
@@502EL.JUAREZITHO I don’t have a video that I did a complete tear down and replacement. There are some videos out there of the whole entire break down. Yes, it’s best if you align the marks before you take it down. I just had to remove the heads and resurface them so I left most of the chain assembly on during the process.