Drilling Outboard Mounting Holes - Mercury 300 XS OptiMax Manual

Item Model
25 in. driveshaft models
c
30 in. driveshaft models
c

Drilling Outboard Mounting Holes

IMPORTANT: Before drilling any mounting holes, carefully read Determining
Recommended Outboard Mounting Height and install outboard to the
nearest recommended mounting height.
1. Mark four mounting holes on the transom using the transom drilling
fixture.
a
Transom Drilling Fixture
eng
OUTBOARD INSTALLATION
c
5489
Recommended Mounting Height Range
533–609 mm (21–24 in.)
660–736 mm (26–29 in.)
a - Drill guide holes
b
b - Transom drilling fixture
c - Transom centerline
a
2757
Aids in engine installation by acting as a
template for engine mounting holes.
115
91‑98234A2