1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 140Get this manual

1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 140

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FUEL SYSTEM
Diaphragm Inspect all diaphragmsIf distortion, tears, or other damage is found, replace diaphragms
Check-valves Inspect the fuel pump check valvesIf tears, distortion or damage