DAELIM ET-300 Service Manual page 50

Remove the 2 cylinder head mounting bolts from
cylinder head right side, and then remove 4 nuts and
washers from cylinder head upper side.
Remove the cylinder head.
Remove cylinder head gasket and 2 dowel pins.
Remove chain guide.
Clean up residues from the matching surfaces of
cylinder and cylinder head.
Caution
Do not damage the matching surfaces of
cylinder and cylinder head.
Avoid residues of gasket or foreign materials
falling into crankcase as cleaning.
Use a valve cotter remove & assembly tool to press
the valve spring, and then remove valves.
Caution
In order to avoid loosing spring elasticity, do
not press the spring too much. Thus, press
length is based on the valve cotter in which can
be removed.
Special Service Tool:
Valve cotter remove & assembly tool
2 bolts
Chain guide
Valve cotter remove
and assembly tool
Inner spring
Inlet valve
Exhaust valve Outer spring
4 Nuts
Gasket
Dowel pins
Spring retainer
Cotter