2000-2005 Yamaha F40B Outboard Service Manual, Page 136Get this manual
C_E_J FUEL PUMP
DISASSEMBLINGIASSEMBLING THE FUEL PUMP ASSEMBLY
Step JobParts Fuel pump cover Packing Diaphragm Fuel pump body Seat valve Pin Plunger Plunger spring Diaphragm spring 10 Diaphragm