Honda CBF150 2002 Manual page 113

SERVICE INFORMATION
GENERAL
• This section covers service of the cylinder head, valves, rocker arms and camshaft.
• The cylinder head and valves services can be done with the engine installed in the frame.
• 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 loca-
tions.
• 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. Clean the oil passage before
assembling cylinder head.
SPECIFICATIONS
Cylinder compression at 1,000 min
Valve clearance
Valve, Valve stem O.D.
valve guide
Valve guide I.D.
Stem-to-guide clear-
ance
Valve guide height
Valve seat width
Valve spring Free length
Rocker arm Arm I.D.
Shaft O.D.
Arm-to-shaft clear-
ance
Camshaft Cam lobe height
Cylinder head warpage
TORQUE VALUES
Cylinder head cover bolt
Rocker arm shaft bolt
Camshaft holder bolt
Cam sprocket bolt
Carburetor insulator bolt
Cam chain tensioner lifter plug
ITEM
-1 (rpm)
IN
EX
IN
EX
IN/EX
IN
EX
IN/EX
IN/EX
INNER
OUTER
IN/EX
IN/EX
IN/EX
IN
EX
10 N·m (1.0 kgf·m, 7 lbf·ft)
5 N·m (0.5 kgf·m, 3.7 lbf·ft)
32 N·m (3.3 kgf·m, 24 lbf·ft)
9 N·m (0.9 kgf·m, 6.6 lbf·ft)
12 N·m (1.2 kgf·m, 9 lbf·ft)
4 N·m (0.4 kgf·m, 3.0 lbf·ft)
STANDARD
1,152 kPa (11.8 kgf/cm 2 , 167 psi)
0.08 (0.003)
0.12 (0.005)
4.975 – 4.990 (0.1959 – 0.1965)
4.955 – 4.970 (0.1951 – 0.1957)
5.000 – 5.012 (0.1969 – 0.1973)
0.010 – 0.037 (0.0004 – 0.0015)
0.030 – 0.057 (0.0012 – 0.0022)
16.8 – 17.0 (0.66 – 0.67)
0.9 – 1.1 (0.035 – 0.043)
38.76 (1.526)
35.95 (1.415)
10.000 – 10.015 (0.3937 – 0.3943)
9.972 – 9.987 (0.3926 – 0.3932)
0.013 – 0.043 (0.0005 – 0.0017)
32.994 – 33.234 (1.2990 – 1.3084)
32.880 – 33.120 (1.2945 – 1.3039)
–
Apply engine oil to the threads and
seating surface.
CYLINDER HEAD/VALVES
Unit: mm (in)
SERVICE LIMIT
4.92 (0.194)
4.90 (0.193)
5.04 (0.198)
0.07 (0.003)
0.09 (0.004)
1.5 (0.06)
37.89 (1.492)
35.14 (1.383)
10.10 (0.398)
9.91 (0.390)
0.10 (0.004)
32.96 (1.298)
32.85 (1.293)
0.05 (0.002)
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–
–
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