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CYLINDER HEADNALVES
SERVICE INFORMATION
GENERAL
• This section covers service
of
the
cylinder
head
,
valves
,
rocker arms and camshaft.
• The camshaft service can be done with the engine installed in the frame. The cylinder head service requires engine removal.
• Be careful not to damage the mating surfaces when removing the cylinder head
cover
and cylinder head. Do not strike the
cylinder head
cover
and cylinder head too hard during removal.
• When disassembling, mark and store the disassembled parts to
ensure
that they are reinstalled in their original
locations.
• Clean all disassembled parts with cleaning solvent and dry them by blowing them off with
compressed air
before inspection.
• Camshaft and rocker arm lubricating oil is fed through oil passage in the cylinder head
(stud
bolt hole) and camshaft holder.
Clean the oil passage before assembling them.
TOOLS
Valve spring compressor
07757-0010000
Seat cutter, 27.5 mm
(45°
EX)
07780-0010200
or equivalent
commercially
available in
U.S.A.
Flat
cutter,
30
mm
(32°
IN)
07780-0012200
or equivalent
commercially
available in
U.S.A.
10-2
Valve spring compressor attachment
07959-KM30101
Seat cutter, 33 mm
(45°
IN)
07780-0010800
A
/
.
or equivalent commercially available in
U.S.A.
Interior
cutter,
30
mm
(60°
EX)
07780-0014000
or equivalent commercially available in
U.S.A.
Valve guide
driver,
4.3 mm
07HMD-ML00101
Flat
cutter,
27 mm (32
°
EX)
07780-0013300
©~
(~/
or equivalent
commercial
ly
available in
U.S .A.
Interior
cutter,
37
.5
mm (60
°
IN)
07780-0014100
or equivalent commercially available in
U.S.A.
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