Yamaha F40F Owner's Manual page 43

ECM01631
NOTICE
Check that the idle hole stays high
●
enough to keep out water getting inside
engine even if the boat is in stationary
with maximum load.
Incorrect engine height or obstructions
●
to the smooth flow of water (such as the
design or condition of the boat, or ac-
cessories such as transom ladders or
depth finder transducers) can create
airborne water spray while the boat is
cruising. If the motor is operated con-
tinuously in the presence of airborne
water spray, enough water could enter
the engine through the intake opening
on the cowling to cause severe engine
damage. Eliminate the cause of the air-
borne water spray.
ZMU01762
Installation
37