Operation; Installation; Mounting The Outboard Motor - Yamaha F75 Owner's Manual
Outboard motor
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Also See for F75:
- Owner's manual (234 pages) ,
- Installation manual (224 pages) ,
- Maintenance manual (36 pages)
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Operation
EMU26901
Installation
ECM00110
CAUTION:
Incorrect engine height or obstructions to
smooth water flow (such as the design or
condition of the boat, or accessories such
as transom ladders or depth finder trans-
ducers) can create airborne water spray
while the boat is cruising. Severe engine
damage may result if the motor is operat-
ed continuously in the presence of air-
borne water spray.
NOTE:
During water testing check the buoyancy of
the boat, at rest, with its maximum load.
Check that the static water level on the ex-
haust housing is low enough to prevent water
entry into the powerhead, when water rises
due to waves when the outboard is not run-
ning.
EMU26910
Mounting the outboard motor
EWM00820
WARNING
Overpowering a boat could cause se-
G
vere instability. Do not install an out-
board motor with more horsepower than
the maximum rating on the capacity
plate of the boat. If the boat does not
have a capacity plate, consult the boat
manufacturer.
The information presented in this sec-
G
tion is intended as reference only. It is
not possible to provide complete in-
structions for every possible boat and
motor combination. Proper mounting
depends in part on experience and the
specific boat and motor combination.
25
EWM00830
WARNING
Improper mounting of the outboard motor
could result in hazardous conditions such
as poor handling, loss of control, or fire
hazards. Observe the following:
For permanently mounted models, your
G
dealer or other person experienced in
proper rigging should mount the motor.
If you are mounting the motor yourself,
you should be trained by an experienced
person.
For portable models, your dealer or oth-
G
er person experienced in proper out-
board motor mounting should show you
how to mount your motor.
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)
EMU26930
Mounting height (boat bottom)
To run your boat at optimum efficiency, the
water resistance (drag) of the boat and out-
board 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
1
ZMU01760
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