M25 Jet Drive
ENGINE INSTALLATION
Transom height of the boat
Outboards with jet drives will be mounted approximately 7 inches higher on the transom than
propeller driven outboards. This requires outboards than have a 15 in. shaft length to be installed
on boats having a 22 in. transom height.
If the boat transom is of insufficient height, and the outboard cannot be installed to the
recommended height, cantact the boat manufacturer for recommended procedure to build up
the boat transom.
Locate center line of the outboard
Locate (and mark with pencil) the vertical centerline (a) of boat transom.
A
B
a
C
D
a - Centerline of transom
C = 521 mm / 20.5 in
21 21 21