1990 Johnson Evinrude 120 thru 140, 185 thru 225, 300 HP, P/N 507875, Page 12Get this manual
Service Policy When servicing an outboard which is within its normal warranty period or covered by the OMC 1+ TM Extended Protection Plan, repairs should be made using only OMC genuine replacement components or partsIf OMC genuine replacement components or parts are not used, OMC might refuse subsequent warranty claims involving that engine ill parts or parts with equivalent characteristics including
When replacement parts are required, use genuine OMC