Yamaha XVS250 2001 Service Manual page 28

Item
Pistons
Piston-to-cylinder clearance
Diameter D
Height H
Piston pin bore (in the piston)
Diameter
Offset
Offset direction
Piston pins
Outside diameter
Piston-pin-to-piston-pin-bore
clearance
Piston rings
Top ring
Ring type
Dimensions (B T)
End gap (installed)
Ring side clearance
2nd ring
Ring type
Dimensions (B T)
End gap (installed)
Ring side clearance
Oil ring
Dimensions (B T)
End gap (installed)
ENGINE SPECIFICATIONS
Standard
0.02 X 0.03 mm
48.965 X 49.005 mm
6 mm
13.002 X 13.013 mm
0.5 mm
Intake side
12.996 X 13.000 mm
0.002 X 0.017 mm
Barrel
1.0  2.0 mm
0.15 X 0.30 mm
0.02 X 0.06 mm
Taper
1.0  2.0 mm
0.15 X 0.30 mm
0.02 X 0.06 mm
2.0  2.2 mm
0.3 X 0.9 mm
2-6
SPEC
Limit
0.15 mm
DDD
DDD
13.045 mm
DDD
DDD
12.976 mm
DDD
DDD
DDD
0.4 mm
0.12 mm
DDD
DDD
0.4 mm
0.12 mm
DDD
DDD