Honda Outboards BF40A/BF50A Service Manual, Page 218Get this manual
HONDABF35A45A 2) Warning system
The warning system sets the time of the timer before the engine speed control is started and notifies the operator of the oil pressure switchthermo switch operation with the indicator lamps (LED)
Item Oil pressure switch Thermo :SVYIL,;II
Color of the lamp Green Red
r Detection- ,
I When faulty
OFF ON Oil pressure switch: ON when oil pressure is below the set pressure Thermo switch: ON when temperature is above the set temperature
If the product is the steering handle type, the indicator lamps are installed on the outboard If the product is the remote control typethe operator does not notice the trouble easily before the engine speed control is started, as he must frequently turns back while driving if the indicator lamps are mounted on the outboardTherefore, the indicator lamps are mounted on the remote control box and the buzzer in the remote control box sounds after the indicator lamps turn ON (OFF)