1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Repair Manual P/N 520204, Page 147Get this manual
Quality of the image is intentionally reduced!
9 Measure the piston in two locations, 90 apart from each other, V8 in(3 mm) above the bottom of the piston skirt10 The difference between the two measurements is the out-ofroundness and must be no mo