2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 214Get this manual
POWERHEAD INSPECTION
Crankshaft
Measure the diameter of each crankpin and main bearing journalThe lower main bearing journal would only be measured if the bearing was removed for another reason
The dimensional difference between the two areas is cylinder taper The cylinder taper must not exceed 0.002 in(0.05 mm)
1Measurement areas 002142
Cylinder Bore
Use Cylinder Bore Gauge, PN 771310, to inspect each cylinder bore for an out-of-round, oversize, or tapered conditionBe sure the gauge is perfectly square in the bore when measuring