1989 Johnson Evinrude "CE" Colt/Junior thru 8 Service Repair Manual, P/N 507753, Page 66Get this manual

1989 Johnson Evinrude "CE" Colt/Junior thru 8 Service Repair Manual, P/N 507753, Page 66

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Description of System

1 The fuel pump is of the diaphragm-displacement type, and is operated by changes in crankcase pressureAlternately, suction and pressure in the crankcase are transmi