Suzuki RM-Z250 Service Manual page 113

• 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
(special tool) and sleeve protector (a or b) (special tool),
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
09916-14522: Valve lifter attachment (For IN. side)
09919-28620: Sleeve protector (For IN. side)
09916-14530: Valve lifter attachment (For EX. side)
09919-28610: Sleeve protector (For EX. side)
09916-84511: Tweezer
• 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
original positions.
* Be careful not to damage the valve and valve stem
when handling it.
• Install the tappet shims 4 and the tappets 5 to their original
positions.
NOTE:
* Apply engine oil to the stem end and shim.
* Apply MOLYBDENUM OIL SOLUTION to the tappets 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
2 Valve spring retainer
3 Valve cotter
CYLINDER HEAD, CYLINDER AND PISTON 6-19