Yamaha EF2000iS Manuel D'atelier page 258

MAINTENANCE SPECIFICATIONS
ENGINE
Piston:
Piston clearance
<Limit>
Piston skirt "D"
<Limit>
Measuring point "H"
Oversize 1st
2nd
Piston pin hole inside diameter
<Limit>
Piston pin:
Piston pin diameter
<Limit>
Piston ring:
Top ring
Type
Dimensions "B × T"
End gap
<Limit>
Side clearance
<Limit>
2nd ring
Type
Dimensions "B × T"
End gap
<Limit>
Side clearance
<Limit>
Oil ring
Type
Dimensions "B × T"
End gap
<Limit>
MAINTENANCE SPECIFICATIONS
mm (in)
0.015 – 0.040 (0.0006 – 0.0016)
0.1 (0.0039)
48.574 – 48.594 (1.9123 – 1.9131)
48.53 (1.911)
10.0 (0.4)
48.85 (1.9232)
49.10 (1.9331)
12.004 – 12.015 (0.4725 – 0.4730)
12.05 (0.4744)
mm (in)
11.996 – 12.000 (0.4723 – 0.4724)
11.950 (0.4705)
mm (in)
Barrel face
1.5 × 2.0 (0.059 × 0.079)
0.20 – 0.40 (0.008 – 0.016)
0.6 (0.0236)
0.04 – 0.08 (0.0016 – 0.0031)
0.12 (0.0236)
Taper
1.5 × 2.0 (0.059 × 0.079)
0.20 – 0.40 (0.008 – 0.016)
0.6 (0.0236)
0.02 – 0.06 (0.0008 – 0.0023)
0.1 (0.0039)
B
3-piece type
2.5 × 2.5 (0.098 × 0.098)
T
0.20 – 0.70 (0.008 – 0.028)
0.9 (0.0354)
7-3
SPEC