Suzuki RM-Z250 Owner's Service Manual page 113

6-18 CYLINDER HEAD, CYLINDER AND PISTON
• Install the valve spring with the small-pitch portion A facing
cylinder head.
• Put on the valve spring retainer 2, and using the valve lifter
and sleeve protector a (only for exhaust side), press down
the spring, fit the valve cotter halves to the stem end, and
release the lifter to allow the valve cotter 3 to wedge in
between retainer and stem.
# 09916-14510: Valve lifter
09916-14521: Attachment (For IN. side)
09916-14530: Attachment (For EX. side)
09916-28610: Sleeve protector
09916-84511: Tweezers
• Be sure that the rounded lip E of the cotter fits snugly into the
groove F in the stem end.
• Install the other valves and springs in the same manner as
described previously.
Be sure to restore each spring and valve to their origi-
nal positions.
Be careful not to damage the valve and valve stem
when handling it.
• Install the tappet shims and the tappets to their original posi-
tions.
NOTE:
* Apply engine oil to the stem end, shim and tappet before fitting
them.
* When seating the tappet shim, be sure the figure printed sur-
face faces the tappet.
A Small-pitch portion
B Large-pitch portion
C UPWARD
D Paint
CAUTION
4 Valve spring retainer
5 Valve cotter
IN. EX.