The Suzuki RF900RR engine is cooled by engine coolant set in forced recirculation through jackets formed in the cylinder and cylinder head, and through the radiator. For the water pump, a high-capacity centrifugal pump is used. The radiator is a tube-and-fin type made of aluminum material, which is characterized by lightness in weight and good heat dissipation.
Suzuki RF900RR Engine Coolant Thermostat. The thermostat is of wax pellet type, complete with a valve as the means of temperature-dependent control over the flow of engine coolant through the radiator. The valve is actuated by the temperature-sensitive wax contained in the pellet.
The following Suzuki RF900RR Engine Coolant Thermostat circuit diagram shows the electrical wiring for the thermometer. The major components are temperature gauge in contact with the engine coolant; and temperature indicator (engine coolant temperature meter).
R – Red
O – Orange
O/G – Orange with Green tracer
B/G – Black with Green tracer
B/Br – Black with Brown tracer