2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 41Get this manual
SPEC Item
Specification Unit Model F20PHF F20PRF
Fuel pump Fuel pump holding pressure Fuel inlet positive pressure Fuel inlet negative pressure Fuel outlet positive pressure Fuel joint holding pressure Positive pressure Fuel filter assembly holding pressure Positive pressure
kPa (kgfcm2, psi) kPa (kgfcm2, psi) kPa (kgfcm2, psi) kPa (kgfcm2, psi)
50 (0.5, 7.3) 30 (0.3, 4.4) 50 (0.5, 7.3)