Suzuki RMX450Z Service Manual page 40

0B-15 Maintenance and Lubrication:
7) Insert the thickness gauge between each tappet and
cam. If the clearance is out of specification, adjust it
to the specified range.
NOTE
The valve clearance specification is different
for both intake and exhaust valves.
Special tool
(A): 09900–20803 (Thickness gauge)
Valve clearance (When cold)
IN.: 0.09 – 0.16 mm (0.004 – 0.006 in)
EX.: 0.17 – 0.24 mm (0.007 – 0.009 in)
Adjustment
The clearance is adjusted by replacing the existing
tappet shim with a thicker or thinner one.
1) Remove the intake or exhaust camshaft. Refer to
"Engine Top Side Disassembly" in Section 1D
(Page 1D-27).
2) Remove the tappet (1) and shim (2) by fingers or
magnetic hand.
1
3) Check the figures printed on the shim. These figures
4) Select a replacement shim that will provide a
(A)
5) Fit the selected shim (2) to the valve stem end, with
IA02J1020038-01
2
IA02J1020039-01
indicate the thickness of the shim, as illustrated.
240
clearance within the specified range. For the
purpose of this adjustment, a total of 61 sizes of
tappet shim are available ranging from 1.500 to
3.000 mm in steps of 0.025 mm.
CAUTION
!
Both the right and left valve clearances
should be as closely as possible.
numbers toward tappet. Be sure to check shim size
with micrometer to ensure its size.
NOTE
• Be sure to apply engine oil to tappet shim
top and bottom faces.
• When seating the tappet shim, be sure the
figure printed surface faces the tappet.
2.40 mm
IA02J1020040-01
2
IA02J1020041-01