Help with JD L100. HOPEFULLY :/

[Dkishton1486]

Can I just put it all together and turn it by hand until one valve closes and the other is open and adjust the closed one and then once it's set turn it until the adjusted valve is open and adjust the closed one?

 

[BlazNT]

No, you need to adjust at TDC on compression stroke then 1/4 turn when both valves are closed.

 

[Dkishton1486]

***Update*** Installed a new headgasket and it works great