Outboard Installation; Hull Preparation - BRP 2995 Johnson Service Manual

OUTBOARD
INSTALLATION
Hull Preparation
Maximum Capacity
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WARNING
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Do not overpower the boat by installing an
outboard that exceeds the horsepower
indicated on the boat's capacity plate.
Overpowering could result in loss of con-
trol.
Before installing outboard:
• Refer to the boat manufacturer's certification
label for maximum horsepower rating .
• Refer to ABYC Standards to determine the
maximum horsepower capacity for boats with-
out certification labeling.
1029A
Mounting Surface
Inspect transom surface prior to drilling mounting
holes.
• The transom should meet ABYC Standards.
• The transom must be flat and cannot have any
protrusions.
• The transom angle should be approximately 14
degrees.
• Check transom strength and height.
INSTALLATION AND PREDELIVERY
OUTBOARD INSTALLATION
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WARNING
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DO NOT install an outboard on a curved or
irregular surface. Doing so can wear, bind,
and damage components, causing loss of
control.
Top Edge of Transom or Bracket
Transom thickness or off-sets must also be con-
sidered. The top edge of the transom or bracket
must provide a proper surface for stern brackets.
The stern brackets must contact the flat surface of
the transom or bracket. Modify moldings or com-
ponents that prevent the stern brackets from rest-
ing against the transom surface. Do not modify
transom brackets.
Transom Clearances
Make sure the transom and splash well area pro-
vide adequate clearances.
• The top edge of the transom should be wide
enough to allow full steering travel. The ABYC
standard for most single outboard installations
is 33 in. (84 cm).
• Check cable and hose routing clearances.
• Make sure there is clearance for mounting bolts
and washers. Check the inside area of the tran-
som for obstructions prior to drilling holes.
Water Flow
Inspect the hull area directly in front of the mount-
ing location .
• Boat-mounted equipment should not create tur-
bulence in the water flow directly in front of the
outboard's gearcase. Turbulence or disruptions
in the water flow directly in front of the gearcase
will affect engine cooling and propeller perfor-
mance.
Mounting Hardware
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WARNING
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Use all mounting hardware supplied with
the outboard to help ensure a secure
installation. Substituting inferior hardware
can result in loss of control.
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