Installing Outboard; Drilling Outboard Mounting Holes - Mercury Optimax 115 Service Manual

Installing Outboard

Drilling Outboard Mounting Holes

1. Attach (tape) engine mounting template (located with the installation manual) to boat
transom.
IMPORTANT: If using "Transom Drilling Fixture" (part number 91-98234A2), use
drill guide holes marked "A" when drilling outboard mounting holes.
a -
b -
2. Mark and drill four 17/32 in. (13.5mm) mounting holes.
90-855347R1 JANUARY 1999
b
a
Centerline of Transom
Transom Drilling Fixture (91-98234A2)
OUTBOARD MOTOR INSTALLATION
Page 1D-3