BRP Evinrude Installation Manual page 36

OUTBOARD INSTALLATION
TRANSOM MEASURING AND DRILLING
Transom Height
Make sure the transom height matches the length
of the outboard to be installed.
•
A 19 to 21 in. (48.3 to 53.3 mm) transom height
uses a 20 in. (50.8 mm) shaft outboard.
•
The shaft length of the outboard being installed
should come close to matching the transom
height of the boat.
•
Refer to SPECIFICATIONS in outboard Opera-
tor's Guide for transom height.
Determine transom height by measuring from the
top edge of the transom, along the centerline.
For dual-outboard installations, transom height
should be measured at the outboard centerlines.
Use a straightedge as a reference to extend the
bottom of the boat.
Position the straightedge along centerline. The
distance from the top edge of the straightedge to
the top edge of the transom is the actual transom
height.
1. Top edge of transom
2. Actual transom height
15–30 HP M
ODELS
With the outboard installed on the boat:
•
Generally the anti-ventilation plate of the gear-
case should align with the bottom of the hull.
•
The anti-ventilation plate should NOT extend
more than 2 in. (5 cm) BELOW the bottom of
the hull.
34
Transom Drilling Locations
75–300 HP, A
40–60 HP, P
25–30 HP, P
All models use the standard ABYC 4-Bolt mount-
ing pattern.
Use
P/N 385368, as a guide for correct hole place-
ment. If drill fixture is unavailable, refer to Drilling
and Hardware Diagrams on p. 36 for measure-
ments.
Position drill fixture on top of transom or bracket
and align indicator points with centerline.
1
Transom drill fixture P/N 434367 (heavy duty)
2
The indicators are affected by the squareness of
the top edge of the transom. If either side of the
fixture must be raised more than ¼ in. (6 mm)
above the transom's top surface to make both
indicators align, the transom must be modified.
DR5541
IMPORTANT:
edge of the transom is straight. Position the drill
fixture based on measurements aligning it to the
bottom of the hull.
NOTICE
transom surface above the top mounting
bolts.
M
LL ODELS
T
OWER RIM MODELS
T M
OWER RIM ODELS
Transom drill fixture,
DO NOT assume that the top
Maintain at least 1.75 in. (45 mm) of
P/N 434367 or
24496