Yamaha EF2200iS, Service Manual

Page: 126 / 162

MAINTENANCE SPECIFICATIONS
7-4
1
2
3
4
5
6
7
8
9
10
SP
ECIFIC
A
T
IO
NS
MAINTENANCE SPECIFICATIONS
ENGINE
Piston:
Piston-to-cylinder clearance 0.020–0.035 mm (0.0008–0.0014 in)
Limit 0.150 mm (0.0059 in)
Piston diameter 48.574–48.594 mm (1.9124–1.9131 in)
Limit 48.53 mm (1.9106 in)
Measuring point (from piston
skirt bottom) 10 mm (0.3937 in)
Oversize 1st 48.85 mm (1.9232 in)
2nd 49.10 mm (1.9331 in)
Piston pin hole inside diameter 12.004–12.015 mm (0.4726–0.4730 in)
Limit 12.045 mm (0.4742 in)
Piston pin:
Piston pin diameter 11.996–12.000 mm (0.4723–0.4724 in)
Limit 11.976 mm (0.4715 in)
Piston ring:
Top ring
Type Barrel
Dimensions 1.5

1.9 mm (0.059

0.074 in)
End gap (installed) 0.15–0.30 mm (0.0059–0.0118 in)
Limit 0.55 mm (0.021 in)
Side clearance 0.04–0.08 mm (0.0016–0.0031 in)
Limit 0.12 mm (0.0047 in)
2nd ring
Type Taper
Dimensions 1.5

1.9 mm (0.059

0.074 in)
End gap (installed) 0.25–0.40 mm (0.0098–0.0157 in)
Limit 0.75 mm (0.0295 in)
Side clearance 0.04–0.08 mm (0.0016–0.0031 in)
Limit 0.12 mm (0.0047 in)
Oil ring
Type 3-piece type
Dimensions 2.5

2.5 mm (0.0984

0.0984 in)
End gap (installed) 0.20–0.70 mm (0.008–0.028 in)
Limit 0.90 mm (0.0354 in)
Cylinder head:
Warpage limit 0.05 mm (0.002 in)
Cylinder:
Bore 48.600–48.620 mm (1.9134–1.9142 in)