2000-2005 Yamaha F40B Outboard Service Manual, Page 468Get this manual
IGNITION CONTROL SYSTEM
MEASURING THE PULSER COIL OUTPUT PEAK VOLTAGE
Refer to "CHECKING THE PULSER COIL" on page 8-14
CHECKING THE OIL PRESSURE SWITCH CONTINUITY
Check: Oil pressure switch continuity Out of specification Replace
Oil pressure switch continuity pressure 1-;.1 15.5 kPa (1.55 kgfcm2, 2.25 psi) Measuring steps (1) Remove the oil pressure switch(2) Connect the mity vac as shown-