1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Repair Manual P/N 520208, Page 72Get this manual
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VRO Oil Pump Volume Test
4 Install in(25length of in (6,35' clear vinyl hose with marks every '2 in(12,7 for in (101,6, starting several inches from the end
5 Fill the hose with Evi