7-32 SERVICING INFORMATION
SERVICE DATA
VALVE + GUIDE
ITEM STANDARD LIMIT
IN.
EX.
28.5
25
Valve diam.
———
———
———
IN.
EX.
0.020 – 0.047
0.040 – 0.067
Valve guide to valve stem
clearance
———
———
Valve clearance (when cold)
IN.
4.965 – 4.980
Valve stem O.D. ———
EX.
4.945 – 4.960
———
IN. & EX.
———
Valve stem runout
0.05
IN. & EX. ———
0.5
IN. & EX.
IN. & EX.
0.9 – 1.1
Valve seat width
Valve head radial runout
35.0
INNER
OUTER
———
Valve spring free length (IN. & EX.)
37.8
———
INNER
5.3 – 6.5 kgf
at length 28 mm
———
OUTER
13.1 – 15.1 kgf
at length 31.5 mm
EX.
Valve spring tension (IN. & EX.)
———
———
0.03
———
0.18 – 0.23
CAMSHAFT + CYLINDER HEAD
ITEM STANDARD LIMIT
IN.
33.58 – 33.62
Cam height
33.28
Unit: mm
EX.
32.65 – 32.69 32.35
IN. & EX.
0.032 – 0.066
0.150
IN. & EX.
22.012 – 22.025
IN.
0.10 – 0.15
Camshaft journal oil clearance
Camshaft journal holder I.D.
———
———
Valve head thickness
IN. & EX.
Valve guide I.D.
———
5.000 – 5.012
0.35
IN. & EX.
Valve stem deflection
———
IN. & EX. ———
2.5
Valve stem end length
———
Camshaft journal O.D.
21.959 – 21.980
———
Camshaft runout 0.10
24th pin
Cam chain pin (at arrow “3”)
Cylinder head distortion
———
———
IN. & EX.
0.20
IN. & EX.
———
Rocker arm I.D.
12.000 – 12.018
IN. & EX.
———
Rocker arm shaft O.D.
11.973 – 11.984
IN. & EX.
CYLINDER + PISTON + PISTON RING
ITEM STANDARD LIMIT
Compression pressure
Compression pressure difference
1 250 kPa
(12.5 kgf/cm
2
)
875 kPa
(8.75 kgf/cm
2
)
200 kPa
(2 kgf/cm
2
)
———
Piston to cylinder clearance
0.040 – 0.070 0.120
Cylinder bore
79.000 – 79.015 79.080
Piston diam.
78.945 – 78.960
Measure at 15 mm from the skirt end.
78.880
———Cylinder distortion
0.20
Unit: mm
Unit: mm
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