2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 158Get this manual

2004 SR Johnson 2-stroke 40, 50HP Service Repair Manual P/N 5005640, Page 158

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FUEL SYSTEM PRIMER PUMP
Cleaning and Inspection
Inspect brass plunger shaft for burrs scratchesRemove small scratches polishing the plunger with crocus clothIf the plunger has deep scratch