4-34
ENG
CYLINDER AND PISTON
f. If out of specification, rebore or replace the
cylinder, and replace the piston and piston
rings as a set.
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EAS00263
CHECKING THE PISTON RINGS
1. Measure:
9
piston ring side clearance
Out of specification
→
Replace the piston
and piston rings as a set.
NOTE:
Before measuring the piston ring side clear-
ance, eliminate any carbon deposits from the
piston ring grooves and piston rings.
2. Install:
9
piston ring
(into the cylinder)
NOTE:
Level the piston ring into the cylinder with the
piston crown.
a
40 mm
Piston-to-cylinder clearance
0.020 – 0.025 mm
(0.0008 – 0.0010 in)
<Limit>: 0.15 mm (0.0059 in)
Piston-to-cylinder clearance =
Cylinder bore “C” –
Piston skirt diameter “P”
Piston ring side clearance
Top ring
0.03 – 0.07 mm
(0.0012 – 0.0028 in)
<Limit>: 0.12 mm (0.0047 in)
2nd ring
0.02 – 0.06 mm
(0.0008 – 0.0024 in)
<Limit>: 0.12 mm (0.0047 in)
3S3-F8197-E0_4_1 05.11.18 13:15 Page 34
Summary of Contents for Sirius T110LSE
Page 1: ...T110LE T110LSE SERVICE MANUAL 3S3 F8197 E0 ...
Page 2: ......
Page 6: ......
Page 8: ......
Page 10: ......
Page 12: ...GEN INFO ...
Page 22: ...SPEC ...
Page 99: ...ENG ...
Page 179: ...ENG 4 80 ...
Page 181: ...CARB ...
Page 261: ...ELEC ...
Page 265: ...ELEC CHECKING SWITCH CONTINUITY 7 4 ...
Page 301: ...TRBL SHTG ...
Page 303: ...TRBL SHTG TROUBLESHOOTING 8 2 COMPRESSION SYSTEM ...
Page 305: ...TRBL SHTG ...
Page 306: ......
Page 307: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...