1993 Johnson Evinrude "ET" 9.9 thru 30 Service Repair Manual, P/N 508282, Page 61Get this manual

1993 Johnson Evinrude "ET" 9.9 thru 30 Service Repair Manual, P/N 508282, Page 61

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Description of Fuel System [":;11 The fuel pump is of the diaphragm-displacement type and is LJ operated changes in crankcase pressueAlternately, suction and pressue in the crankcase transmitted to th