Clamping The Outboard Motor - Yamaha 15F Owner's Manual

Operation
ECM01630
CAUTION:
During water testing, check the buoyan-
G
cy of the boat, at rest, with its maximum
load. Check that the static water level on
the exhaust housing is low enough to
prevent water entry into the power head
when water rises due to waves when the
outboard is not running.
Incorrect engine height or obstructions
G
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 air-
borne water spray while the boat is
cruising. If the motor is operated contin-
uously in the presence of airborne water
spray, enough water could enter the en-
gine through the intake opening on the
cowling to cause severe engine dam-
age. Eliminate the cause of the airborne
water spray.
NOTE:
The optimum mounting height of the out-
G
board motor is affected by the boat and mo-
tor combination and the desired use. Test
runs at different heights can help determine
the optimum mounting height. Consult your
Yamaha dealer or boat manufacturer for
further information on determining the prop-
er mounting height.
For instructions on setting the trim angle of
G
the outboard motor, see page 23.
EMU26970

Clamping the outboard motor

1. Place the outboard motor on the transom
so that it is positioned as close to the cen-
ter as possible. Tighten the transom
clamp screws evenly and securely. Oc-
casionally check the clamp screws for
15
tightness during operation of the out-
board motor because they could become
loose due to engine vibration.
EWM00640
WARNING
Loose clamp screws could allow the out-
board motor to fall off or move on the tran-
som. This could cause loss of control and
serious injury. Make sure the transom
screws are tightened securely. Occasion-
ally check the screws for tightness during
operation.
2. If the engine restraint cable attachment is
equipped on your engine, an engine re-
straint cable or chain should be used. At-
tach one end to the engine restraint cable
attachment and the other to a secure
mounting point on the boat. Otherwise
the engine could be completely lost if it
accidentally falls off the transom.
ZMU02012
ZMU02013