Yamaha EF4500iSE Theory & Diagnostics Manual page 195

MAINTENANCE SPECIFICATIONS
ENGINE
Unit
Piston:
Piston clearance
<Limit>
Piston skirt ìDî
<Limit>
Measuring point ìHî
Oversize 1st
2nd
Piston pin hole inside diameter
<Limit>
Piston pin:
Piston pin diameter
<Limit>
Piston ring:
Top ring
Type
Dimensions ìB × Tî
End gap
<Limit>
Side clearance
<Limit>
2nd ring
Type
Dimensions ìB × Tî
End gap
<Limit>
Side clearance
<Limit>
Oil ring
Type
Dimensions ìB × Tî
End gap
<Limit>
Current Model Specifications and Wiring Diagrams – YG5200D
MAINTENANCE SPECIFICATIONS
mm (in)
0.024 ~ 0.038
(0.00094 ~ 0.00150)
0.100 (0.0039)
77.960 ~ 77.980
(3.0693 ~ 3.0701)
77.900 (3.067)
10.0 (0.4)
78.25 (3.0807)
78.50 (3.0906)
20.000 (0.7874)
20.020 (0.7882)
mm (in)
19.995 ~ 20.000
(0.7872 ~ 0.7874)
19.950 (0.7854)
mm (in)
Barrel face
1.5 × 3.5
(0.059 × 0.138)
0.2 ~ 0.4
(0.008 ~ 0.016)
0.9 (0.0354)
0.04 ~ 0.08
(0.0016 ~ 0.0031)
0.1 (0.0039)
Taper
1.5 × 3.5
(0.059 × 0.138)
0.2 ~ 0.4
(0.008 ~ 0.016)
0.9 (0.0354)
0.03 ~ 0.07
(0.0012 ~ 0.0028)
0.1 (0.0039)
3-piece type
2.5 × 2.8
(0.098 × 0.110)
0.2 ~ 0.7
(0.008 ~ 0.028)
0.9 (0.0354)
8
3-119
SPEC
EF5200DE
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YG5200D