7-2 - ATTACHMENTS/CONTROL LINKAGE 90-824052R3 JUNE 2002
Installing High Performance
Outboards - Pro Max/Super
Magnum Models
Outboard mounting height is measured in a vertical
line from the top of the transom clamping bracket to
the bottom of the boat.
a
Recommended Outboard Mounting Height
Gearcase
Application
a - Minimum
Height
a - Maximum
Height
Sportmaster/
CLE
27″ (68cm) 30″ (76cm)
Torquemaster 25″ (64cm) 27″ (68cm)
4-1/4” XR 20″ (51cm) 25″ (64cm)
IMPORTANT: The optimum height for each
application will need to be determined by
individual boat testing. Some generalities may
apply when increasing the transom height:
More top speed
Greater boat stability
Possibly cause more prop “break loose”
which may be noticeable during planing
or with heavy loads.
CAUTION
Prevent engine damage. If outboard is mounted
too high, engine damage could occur due to a
lack of water flow and pressure; this particularly
evident on 4-1/4 in. XR and Torque Master gear-
cases.
NOTE: Only propellers designed for surface type
applications should be used with Pro Max and Super
Magnum outboards.