1993 Johnson Evinrude "ET" 90 degrees LV Service Repair Manual, P/N 508287, Page 66Get this manual

1993 Johnson Evinrude "ET" 90 degrees LV Service Repair Manual, P/N 508287, Page 66

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Maximum Spark Advance Install all spark plugs and connect spark plug leadsRun the engine with the proper test wheelDo not run the engine with propeller or flushing adapter for the adjustment1 Connect