Yamaha Z250D Manuel D'utilisation page 88

E
Mount the outboard motor on the center line
(keel line) of the boat, and ensure that the
boat itself is well balanced. Otherwise, the
boat will be hard to steer. For boats without
a keel or which are asymmetrical, consult
your dealer.
1 Center line (keel line)
q
104016
q
000371
EMU01918
Mounting Height
To run your boat at optimum efficiency, the
water resistance (drag) of the boat and out-
board motor must be made as little as pos-
sible. 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 causing the engine to overheat. If the
mounting height is too low, the water resis-
tance will increase and thereby reduce
engine efficiency.
3-3