
INSTALLATION 13
3
Before beginning the running test, check
that the boat with maximum capacity
loading floats on the water in a proper
attitude. Check the position of water
surface on the driveshaft housing. If the
water surface is near the bottom cowl-
ing, in high waves, water may enter the
engine cylinders.
Incorrect outboard motor mounting
height or existence of underwater
object(s), such as hull bottom design,
bottom surface conditions or underwa-
ter accessories, can cause water spray
possibly reaching the engine through an
opening of the bottom cowling during
cruising. Exposing engine to such condi-
tions for extended periods can lead to
severe engine damage.
Mounting bolts should be installed with the
bolt head at inside surface of the transom.
Mounting bolts installed with the threaded
end at the inside surface of the transom
can cause personal injury.
Notes
1Apply sealing agent, such assilicone
sealed between the boltsand the tran-
som board holesbefore tightening the
bolts.
2Be sure to tighten the mounting bolt nuts
to the specified torque.
(30 Nm (13ft·lb) 3.0kgf)
Mounting the outboard motor without
following this manual can lead to unsafe
conditions such as poor maneuverabil-
ity, lack of control or fire.
Loose clamp screws and/or mounting
bolts can lead to the release or displace-
ment of the outboard motor, possibly
resulting in lost of control and/or serious
personal injury. Be sure that fasteners
are tightened to the specified torque
(30Nm (13ft·lb) 3.0kgf). Check the fasten-
ers for tightness from time to time.
Be sure to use outboard mounting fas-
teners included in the outboard motor
package or their equivalents in terms of
size, material, quality and strength.
Tighten fasteners to the specified torque
(30Nm (13ft·lb) 3.0kgf). Test cruise to
check if fasteners are tightened
securely.
Outboard motor mounting must be per-
formed by trained service person(s)
using lift or hoist with sufficient capacity.
Washer
Bolt
Nut &
Washer
*option
Clamp
screw
108 mm
(4.25 in)
68.5 mm
(2.70 in)
98 mm
(3.86 in)
70 mm
(2.76 in) 66 mm
(2.60 in)
96 mm
(3.78 in)
66.5 mm
(2.62 in)
ø36 mm
(1.42 in)
ø8.5 mm
(0.33 in)
106 mm
(4.17 in)
177.5 mm
(6.99 in)
167.5 mm
(6.59 in)
187 mm (7.36 in)
50 mm
(1.97 in)
29.5 mm
(1.16 in)
CENTER LINE
Allowable Transom
Thickness
40~60mm (1.57~2.36 in)
TOP OF
TRANSOM
MX18E2_E.book Page 13 Tuesday, August 2, 2011 12:37 PM