Specifications

1. PISTON
1) Ptston skirt clearance
0.050 - 0.055 mm (0.0020 - 0.0022 in)
2) Piston oversize
7525 mm 75.50 mm
75.75 mm 76.00 mm
12.963 InI
I2972 In)
(2 982 In)
(2992 Ill)
3) Piston pin outside diameter x length
20.0
_i,,,,, mm x 61 .O _z,3 mm
(0.79 _~,ooo2 In x 2.40 _E,o,,6 in)
5. PISTON RING
1) Piston ring design
(TOP)
Barrel ring 1.2 mm (0.047 in)
(2nd) Taper ring 1.5 mm (0.059 in)
(Oil ring)
With expander 2.8 mm (0.110 in)
2) Ring end gap
(Installed, top)
0.2
* 0.4 mm IO.008 - 0.016 in)
(Installed, 2nd)
0.2
- 0.4 mm (0.008 - 0.016 in)
(Installed, oil)
0.3
- 0.9 mm (0.012 - 0.035 in)
3) Ring groove side clearance (Top)
0.04
- 0.08 mm (0.0016 - 0.0031 in)
0.03 - 0.07 mm(0.0012 - 0.0028 in)
1) Type
Chain (Center side)
2) Number and type of bearing
4 bearings, Ball
bearings (6005)
6) Camshaft deflection limit
0.03 mm (0.0012 in)
7) Cam chain
Type
TSUBAKIMOTO BF05M
Number of links
1) Rocker arm inner diameter
15.0+i.“‘* mm (0.591 +E”)07 in)
2) Rocker arm shaft diameter
9.
VALVE,VALVE SEAT AND VALVE GUIDE
1) Valve per cylinder
2) Valve clearance (In cold engine) IN: 0.10 mm (0.0039 in)
EX: 0.15 mm (0.0059
in1
3) Dimensions
Valve head diameter “A”
IN: 41 mm (1.614 in)
EX: 35 mm
(1.378 in) C ’
%
\ ‘\Y
Valve face width “B”
IN: 2.1 mm (0.083 in) )J(
_zzzT
1%
EX: 2.1 mm (0.083 in) T
Valve seat width “C”
IN: 1.3mm (0.051 in) D
L--
A_~_ 1,
EX: 1.3 mm (0.051 in)
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