2005 SO Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 162Get this manual
POWERHEAD CYLINDERCRANKCASEPISTON ASSEMBLY Remove crankcase from cylinder Measure the compressed Plastigage at its widest pointFind two stamped code letters on PORT side of cylinderThe letters (A or B) represent bearing holder inside diameter: A: 1.3783 to 1.3786 in(35 .008 to 35.016 mm) B: 1.3780 to 1.3783 in (35.000 to 35.008 mm)
Crankshaft journal oil clearance: Standard: 0.0008 to 0.0019 in(0 .020 to 0.047 mm) Service limit: 0.0024 in(0.060 mm)If measurement exceeds service limit, replace crankshaft bearing
1Upper bearing code 2Lower bearing code
Main Bearing Selection