Suzuki GW250, Руководство по обслуживанию

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SERVICING INFORMATION 10-51
CY PISTON RING
Unit: mm (in)
ITEM STANDARD LIMIT
Compression pressure 1 300 – 1 700 kPa
(13 – 17 kgf/cm², 185 – 242 psi)
1 000 kPa
(10 kgf/cm 2 , 142 psi)
Compression pressure difference
—
200 kPa
(2 kgf/cm 2 , 28 psi)
Piston-to-cylinder clearance 0.04 – 0.05
(0.001 – 0.002)
0.120
(0.0047)
Cylinder bore 53.500 – 53.515
(2.1063 – 2.1069)
53.590
(2.1098)
Piston diam. 53.455 – 53.470
(2.1045 – 2.1051)
Measure at 10 mm (0.4 in) from the skirt end.
53.380
(2.1016)
Cylinder distortion
—
0.10
(0.004)
Piston ring free end gap
1st 1R Approx. 5.3 (0.21)
4.2
(0.17)
2nd 2R Approx. 4.6 (0.18)
3.6
(0.14)
Piston ring end gap
1st
0.20 – 0.32
(0.008 – 0.013)
0.50
(0.020)
2nd
0.20 – 0.32
(0.008 – 0.013)
0.50
(0.020)
Piston ring-to-groove clearance
1st —
0.180
(0.0071)
2nd —
0.150
(0.0059)
Piston ring groove width
1st
1.01 – 1.03
(0.0398 – 0.0406)
—
2nd
1.01 – 1.03
(0.0398 – 0.0406)
—
Oil
2.01 – 2.03
(0.0791 – 0.0799)
—
Piston ring thickness
1st
0.97 – 0.99
(0.0382– 0.0390)
—
2nd
0.97 – 0.99
(0.0382 – 0.0390)
—
Piston pin bore 15.002 – 15.008
(0.5906 – 0.5909)
15.030
(0.5917)
Piston pin O.D. 14.996 – 15.000
(0.5904 – 0.5906)
14.980
(0.5898)