Yamaha FZ6-ST Supplementary Service Manual page 325

CONNECTING RODS AND PISTONS
2. Measure:
3. Measure:
4. Calculate:
5-72
S piston pin outside diameter a
Out of specification ! Replace the piston
pin.
Piston pin outside diameter
15.991 X 16.000 mm
(0.6296 X 0.6299 in)
<Limit>: 15.971 mm (0.6288 in)
S piston pin bore inside diameter b
Out of specification ! Replace the piston.
Piston pin bore inside diameter
16.002 X 16.013 mm
(0.6300 X 0.6304 in)
<Limit>: 16.043 mm (0.6316 in)
S piston-pin-to-piston clearance
Out of specification ! Replace the piston pin
and piston as a set.
Piston-pin-to-piston clearance =
Piston pin bore size –
Piston pin outside diameter
Piston-pin-to-piston clearance
0.002 X 0.022 mm
(0.0001 X 0.0009 in)
<Limit>: 0.072 mm (0.0028 in)
ENG