Yamaha 2007 FZ6-NA Service Manual page 51

Piston
Piston-to-cylinder clearance
Limit
Diameter D
Height H
Offset
Offset direction
Piston pin bore inside diameter
Limit
Piston pin outside diameter
Limit
Piston-pin-to-piston-pin-bore clearance
Limit
Piston ring
Top ring
Ring type
Dimensions (B × T)
End gap (installed)
Limit
Ring side clearance
Limit
2nd ring
Ring type
Dimensions (B × T)
End gap (installed)
Limit
Ring side clearance
Limit
ENGINE SPECIFICATIONS
0.010–0.035 mm (0.0004–0.0014 in)
0.05 mm (0.0020 in)
65.475–65.490 mm (2.5778–2.5783 in)
4.0 mm (0.16 in)
0.50 mm (0.0197 in)
Intake side
16.002–16.013 mm (0.6300–0.6304 in)
16.043 mm (0.6316 in)
15.991–16.000 mm (0.6296–0.6299 in)
15.971 mm (0.6288 in)
0.002–0.022 mm (0.0001–0.0009 in)
0.072 mm (0.0028 in)
Barrel
0.90 × 2.45 mm (0.04 × 0.10 in)
0.25–0.35 mm (0.0098–0.0138 in)
0.60 mm (0.0236 in)
0.030–0.065 mm (0.0012–0.0026 in)
0.115 mm (0.0045 in)
Taper
0.80 × 2.50 mm (0.03 × 0.10 in)
0.70–0.80 mm (0.0276–0.0315 in)
1.15 mm (0.0453 in)
0.030–0.065 mm (0.0012–0.0026 in)
0.125 mm (0.0049 in)
2-6