1D-38 Engine Mechanical:
4) Check the contacting surface of the cam chain
tensioner. If it is worn or damaged, replace it with a
new one.
5) Install the cam chain tensioner and its dampers.
6) Reinstall the crankshaft assembly. Refer to “Engine
Bottom Side Assembly (Page 1D-58)”.
7) Reassemble the crankcases, upper and lower. Refer
to “Engine Bottom Side Assembly (Page 1D-58)”.
Cylinder Head Disassembly and Assembly
B817H21406027
Refer to “Engine Top Side Disassembly (Page 1D-24)”.
Refer to “Engine Top Side Assembly (Page 1D-26)”.
CAUTION
!
Identify the position of each removed part.
Organize the parts in their respective groups
(i.e., intake, exhaust, No.1 or No.2) so that
they can be installed in their original
locations.
Disassembly
1) Remove the tappet (1) and shim (2) by fingers or
magnetic hand.
2) When compressing the valve spring use a sleeve
protector.
Cut the sleeve protector as shown in the illustration.
Special tool
(A): 09919–28610 (Sleeve protector)
3) Install the sleeve protector between the valve spring
and cylinder head.
4) Using the special tools, compress the valve spring
and remove the two cotter halves (3) from the valve
stem.
Special tool
(B): 09916–14510 (Valve lifter)
(C): 09916–14521 (Valve spring compressor
attachment)
: 09916–84511 (Tweezers)
5) Remove the valve spring retainer (4) and valve
spring (5).
6) Pull out the valve (6) from the combustion chamber
side.
I718H1140097-01
1
2
I717H1140105-02
(A)
I717H1140218-02
(C)
(B)
3
I717H1140219-01
5
6
4
I718H1140101-01
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