Tap valve head lightly to loosen half collets.
With a magnet, remove and discard half collets.
Release spring tension and remove spring seats, springs, and val ves.
Place valves on a numbered valve board for inspection.
TOP REAR OF NO. 3 HEAD AND TOP
FRONT OF NO. 1 HEAD SHOWN
d. Remove pipe plugs from fuel connector holes on top rear of number three cylinder head and top front of number
one cylinder head.
e. Remove pipe plugs from fuel passages in ends of each head.
f. Place heads in hot tank for four hours to clean thoroughly.
g. Clean internal fuel passages with ST-876 fuel passage cleaning brush.