[Ronnie's.930]

Hello Erick, no doubt it can be confusing. It took me quite a bit of time and experience checking/adjusting the valve lash (primarily on on Ducati engines) before I could basically take any four stroke engine and find the various TDC in about two seconds (takes practice and maybe making some mistakes along the way).

You don't really need to be concerned about the "loose factor" of the intake valve/rocker - all you need to do is slowly spin the crank pulley and watch that the #1 intake rocker moves from the open to the closed position and check the location of the Z1 mark and the distributor rotor while you are doing so.