BRP Evinrude Specifications download pdf (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.

15–30 HP MODELS

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.

Transom Drilling Locations

75–300 HP, ALL MODELS

40–60 HP, POWER TRIM MODELS

25–30 HP, POWER TRIM MODELS

All models use the standard ABYC 4-Bolt mount-

ing pattern.

Use Transom drill fixture, P/N 434367 or

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.

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.

IMPORTANT: DO NOT assume that the top

edge of the transom is straight. Position the drill

fixture based on measurements aligning it to the

bottom of the hull.

Maintain at least 1.75 in. (45 mm) of

transom surface above the top mounting

bolts.

1. Top edge of transom

2. Actual transom height

DR5541

Transom drill fixture P/N 434367 (heavy duty) 24496

NOTICE

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BRP Evinrude Specifications Page 36

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