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Transom Brackets and Jack
Plates
NOTICE
To prevent damage to outboard, check instal-
lation frequently for:
•
Loose mounting bolts and nuts
•
Elongated mounting holes
•
Bent or deformed washers
Replace any hardware that fails to maintain
torque specifications.
When mounting an outboard on a jack plate:
•
Refer to the manufacturer's recommendations
for maximum weight and horsepower.
•
The jack plate must provide a rigid, one-piece
mounting assembly—either a solid surface, or
surfaces adequately connected to prevent flex-
ing or twisting.
•
DO NOT use a jack plate constructed in two
separate pieces—lack of support can twist the
stern brackets, wear tilt tube bushings and
thrust rollers, and bend or break components.
IMPORTANT:
Damage caused by use of a two-
piece jack plate or unstable mounting surface will
not be covered by warranty.
Recommended Designs
Not Recommended
Whenever possible, use mounting hardware sup-
plied with the outboard to install jack plate on tran-
som. Tighten to a torque of 40 ft. lbs. (54 N·m).
Mounting Hardware
Use all mounting hardware supplied with the
outboard to help ensure a secure installation.
Substituting inferior hardware can result in
loss of control.
Outboard mounting hardware must meet mini-
mum specifications for material and strength:
•
Material: Stainless steel; Group 1,2,3 per
ASTM F593 OR Grade A2 per ISO 3506-1.
•
Strength: Minimum proof load.
Part
Number
336676
331578
354101
354102
354103
354104
Outboard mounting bolts, backing plates, wash-
ers, and nuts are used to attach the outboard to
the shipping pallet. If alternate bolt lengths or
replacement parts are required, use only Evinrude
Genuine Parts.
IMPORTANT:
merchants may not provide the high strength re-
007992
007991
quired for outboard installations.
Outboard Installation
Hull Preparation
WARNING
Proof Load
Length
Thread
(inches)
Size
4.75
1/2-13
5
1/2-13
6
1/2-13
7
1/2-13
8
1/2-13
9
1/2-13
Standard screws offered by local
3
DR5703
Minimum
(lbs.)
12,771
18,520
18,520
18,520
18,520
18,520
47
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