Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 46Get this manual
BF5OBFSA bINSPECTION PUMP
v 111 OIL PRESSURE GAUGE
) Remove the oil pressure switch install the pressure gauge
attachment and connect the oil pressure gauge (7-10 kgcrn2)) Warm up the engine and measure the oil pressure when the oil temperature (194')
ENGINE RPM
1,300 min"' (rpm)
OIL PRESSURE AT (194')
[21 PRESSURE GAUGEATTACHMENT OIL
No074064030000
60 kPa (0.6 kgcm2, 8.53 psi)
3) the oil pressure is low, check the body and rotors for wear or damageCheck the check valve