0C-2 Service Data:
Cylinder + Piston + Piston Ring
Unit: mm (in)
Item
Compression pressure
(Automatic-decomp. actuated)
Piston-to-cylinder clearance
Cylinder bore
Piston diam.
Cylinder distortion
Piston ring free end gap
Piston ring end gap
Piston ring-to-groove clearance
Piston ring groove width
Piston ring thickness
Piston pin bore I.D.
Piston pin O.D.
Conrod + Crankshaft
Unit: mm (in)
Item
Conrod small end I.D.
Conrod deflection
Conrod big end side clearance
Conrod big end width
Crank web to web width
Crankshaft runout
Oil Pump
Item
Oil pressure (at 60 °C, 140 °F)
Clutch
Unit: mm (in)
Item
Clutch wheel I.D.
Clutch shoe
Clutch engagement r/min
Clutch lock-up r/min
Standard
Approx. 1 000 kPa (10.0 kgf/cm
0.030 – 0.040 (0.0012 – 0.0016)
104.000 – 104.015 (4.0945 – 4.0951)
103.965 – 103.980 (4.0931 – 4.0937)
Measure at 15 mm (0.6 in) from the skirt end.
1st
R
2nd
RN
1st
R
0.10 – 0.25 (0.004 – 0.010)
2nd
RN
0.10 – 0.25 (0.004 – 0.010)
1st
2nd
0.83 – 0.85 (0.0327 – 0.0335)
1st
1.30 – 1.32 (0.0512 – 0.0520)
2nd
1.01 – 1.03 (0.0398 – 0.0406)
Oil
2.01 – 2.03 (0.0791 – 0.0799)
0.76 – 0.81 (0.0299 – 0.0319)
1st
1.08 – 1.10 (0.0425 – 0.0433)
2nd
0.97 – 0.99 (0.0382 – 0.0390)
23.002 – 23.008 (0.9056 – 0.9058)
22.992 – 23.000 (0.9052 – 0.9055)
Standard
23.006 – 23.014 (0.9057 – 0.9061)
0.10 – 0.75 (0.004 – 0.030)
24.95 – 25.00 (0.982 – 0.984)
72.9 – 73.1 (2.87 – 2.88)
Standard
140 – 180 kPa
(1.4 – 1.8 kgf/cm
at 3 000 r/min
Standard
140.0 – 140.2 (5.512 – 5.520)
1 500 – 2 000 r/min
3 500 – 4 000 r/min
2
, 142 psi)
—
Approx. 13.1 (0.52)
Approx. 14.6 (0.57)
—
—
—
—
2
, 20 – 26 psi)
—
Limit
—
0.120 (0.0047)
Nicks or
Scratches
103.880 (4.0898)
0.05 (0.002)
10.5 (0.41)
11.7 (0.46)
0.50 (0.020)
0.50 (0.020)
0.180 (0.0071)
0.150 (0.0059)
—
—
—
—
—
—
23.030 (0.9067)
22.980 (0.9047)
Limit
23.040 (0.9071)
3.0 (0.12)
1.0 (0.04)
—
—
0.08 (0.003)
Limit
—
Limit
140.5 (5.53)
No groove at any
part
—
—