1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Repair Manual P/N 500612, Page 82Get this manual

1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Repair Manual P/N 500612, Page 82

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Description of Fuel System
f21 1 The unit is combination mechan ical fuel and oil pump, powered by crankcase pressure and vacuum pulses, which responds to various engine power se