Checking The Piston Pin; Checking The Connecting Rod Small End Inside Diameter; Checking The Connecting Rod Big End Side Clearance; Checking The Crankshaft - Yamaha F225A Service Manual

Checking the piston pin

1. Measure the piston
Replace if out of specification.
Piston pin diameter:
21.00 mm (0.827 in)
Checking the connecting rod small
end inside diameter
1. Measure the connecting rod small end
inside diameter a. Replace the connect-
ing rod if out of specification.
Connecting rod small end inside
diameter a:
21.00 mm (0.827 in)
Checking the connecting rod big end
side clearance
1. Measure the connecting rod big end side
clearance a. Replace the connecting
rod or crankshaft, or both if out of specifi-
cation.
69J3D11
pin diameter.
Connecting rod big end side
clearance a:
0.20–0.25 mm (0.008–0.010 in)

Checking the crankshaft

1. Measure the crankshaft journal diameter
a, crankpin diameter b, and crankpin
width c. Replace the crankshaft if out of
specification.
Cylinder block
5-50
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