Published 2009
Another valve adjustment method:
You can thank Bill Cole for this one.
With 1/2" ratchet and a large socket put the engine on top dead center dizzy rotor pointing to #1 spark plug wire cap position, and adjust #1 rockers, then rotate the crank 180 degrees and check both rockers on # 3(rotor will be pointing to #3 cap position) then rotate again 180 degrees which is to the timing mark and adjust # 4 rockers then 180 and adjust #2 rockers. It usually takes 3-4 tries to get them good enough to quiet down.
Rotor on dizzy will be pointing to 1 3 4 2 as you rotate which is the firing order.
Valves are closed when adjusting via this method.