Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 93Get this manual
Power Unit 22) Inspection of Piston Pin
1Measure piston pin outer diameterReplace if it is less than specified valuePiston Pin Outer DiameterStandard value 14.00 mm (0.5512in) Functional Limit13.97 mm (0.5500 in)
Measure piston pin boss inner diameter aObtain clearance between piston pin and pin bossReplace piston pin or piston if the clearance is over specified valueClearance between Piston Pin and Pin Hole0.0020.012 mm (0.000080.00047 in) Functional Limit0.040 mm (0.00157 in)
23) Inspection Connecting Rod Small End Inner Diameter
1Measure connecting rod small end inner diameter aReplace if it is over specified valueConnecting Rod Small End Inner DiameterStandard value 14.01 mm (0.5516 in) Functional Limit14.04 mm (0.5528 in)