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Installation
24
NOTICE
ECM01631
● 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 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.
T
IP:
● The optimum mounting height of the out-
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
the outboard motor, see page 35.
EMU26972
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
tightness during operation of the out-
board motor because they could become
loose due to engine vibration.
WARNING! Loose clamp screws could
allow the outboard motor to fall off or
move on the transom. This could
cause loss of control and serious inju-
ry. Make sure the transom screws are
tightened securely. Occasionally
check the screws for tightness during
operation.
[EWM00641]
2. If the restraint cable attachment is
equipped on your engine, a restraint ca-
ble or chain should be used. Attach one
end to the 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.
3. Secure the clamp bracket to the transom
using the bolts provided with the out-
board (if packed). For details, consult
your Yamaha dealer. WARNING! Avoid
using bolts, nuts or washers other
than those contained in the engine
ZMU02012
ZMU02013
U63V1EE0.book Page 24 Tuesday, March 3, 2009 10:50 AM