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ENG
CYLINDER AND PISTON
YP******
PISTON AND PISTON PIN INSPECTION
1.Measure:
●
Piston skirt diameter
Out of specification
→
Replace.
a
4.0 mm form the piston bottom edge
2.Calculate:
●
Piston-to cylinder-clearance
Refer to the “CYLINDER” section for cylinder
bore measurement.
Out of specification
→
Replace the piston
and piston rings as a set.
Piston skirt diameter:
69.977 ~ 69.996 mm
Oversize (2) 70.50 mm
Oversize (4) 71.00 mm
Piston-to-cylinder clearance =
Cylinder bore – Piston skirt diameter
Piston-to-cylinder clearance:
0.020 ~ 0.025 mm
<Limit: 0.05 mm>
3.Measure:
●
Piston pin bore diameter
Out of specification
→
Replace.
4.Measure:
●
Piston pin outside diameter
Out of specification
→
Replace.
5.Inspect:
●
Piston pin
Blue discoloration/groove
→
Clean or
replace.
Piston pin bore diameter:
16.002 ~ 16.013 mm
<Limit: 16.043 mm>
Piston pin outside diameter:
15.996 ~ 16.000 mm
<Limit 15.97 mm>
Содержание Scorpio
Страница 8: ...GEN INFO ...
Страница 17: ...SPEC ...
Страница 40: ...2 23 ...
Страница 131: ...4 54 ENG OIL PUMP OIL PUMP 1 Oil pump assembly 2 Oil pump gear 3 Circlip 4 Gasket 5 Oil strainer ...
Страница 146: ...CARB ...
Страница 208: ... ELEC ...
Страница 210: ...7 2 ELEC ELECTRICAL COMPONENTS 1 Ignition coil 2 Flasher relay 3 CDI unit 4 Neutral switch 5 Horn ...
Страница 255: ...TRBL SHTG ...
Страница 256: ...8 1 TRBL SHTG TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING ELECTRICAL SYSTEM ...
Страница 257: ...8 2 TRBL SHTG TROUBLESHOOTING COMPRESSION SYSTEM ...
Страница 258: ...8 3 TRBL SHTG TROUBLESHOOTING INTAKE AND EXHAUST SYSTEM ...
Страница 260: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...
Страница 261: ...Scorpio new SUPPLEMENTARY SERVICE MANUAL 5BP F8197 B1 ...
Страница 299: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...