Mercury 225 EFI - Specifications; Water Pressure; Thermostat

COOLING
Page 4B-2 90-884294 OCTOBER 2001
Specifications
Thermostat 143 °F (61.7 °C). . . . . . . . . . .
Water Pressure
Idle 1.5 – 4.5 PSI
(10.3 – 30.8 kPa)
Poppet Valve Opening 6.0 – 7.0 PSI
(41.3 – 48.2 kPa)
W.O.T. 8 – 10 PSI (54.8 – 68.5 kPa)
Minimum
a
b
c
a-Analog Temperature Sensor (EFI
Models) and optional gauge sender
b-Digital Temperature Sensor for Port
Head
c-Digital Temperature Sensor for Starboard
Head