Mercury 305 CID, Service Manual, Page: 11 / 967

GENERAL INFORMATION - 1A-3 90-823225--1 1096
Directional References
Front of boat is bow; rear is stern. Starboard side is
right side; port side is left side. In this maintenance
manual, all directional references are given as they
appear when viewing boat from stern looking toward
bow.
72000
STARBOARD
(RIGHT)
PORT
(LEFT)
FORE or BOW
(FRONT)
AFT or STERN
(REAR)
Engine Rotation
Engine rotation is determined by observing flywheel
rotation from the rear (stern end) of the engine look-
ing forward (toward water pump end). Propeller rota-
tion is not necessarily the same as engine rotation.
When ordering replacement engine, short blocks or
parts for engine, be certain to check engine rotation.
Do not rely on propeller rotation in determining en-
gine rotation.
72001
b
a
a - Standard Left Rotation - All MCM Stern Drive Engines,
MIE Inboard, Left Hand Rotation Engines.
b - Opposite Right Hand Rotation - MIE Inboard Right Hand
Rotation Engines.
Engine Serial Number
Locations
72468
b
a
72469
b
a
a - Serial Number
b - Starter Motor