EMU01298
Mounting Height
To run your boat at optimum efficiency, the water-resistance (drag) of the boat and outboard motor must be made as little as possi- ble. The mounting-height of the outboard motor greatly affects the water-resistance. If the mounting-height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the engine to overheat. If the mounting- height is too low, the water-resistance will increase and thereby reduce engine effi- ciency. Mount the engine so that the anti- cavitation plate is between the bottom of the boat and a level 25 mm (1 in.) below it.
NOTE:
●The optimum mounting height of the out- board motor is affected by the boat/motor combination and the desired use. Test runs at different heights can help deter- mine the optimum mounting height.
●Refer to the section “TRIMMING OUT- BOARD MOTOR” for instructions on set- ting the trim angle of the outboard.
