Product Manual

If full‑throttle operation is below the recommended range, the propeller must be
changed to prevent loss of performance and possible engine damage. On the
other hand, operating an engine above the recommended operating RPM
range will cause higher than normal wear and damage.
After initial propeller selection, the following common problems may require that
the propeller be changed to a lower pitch.
• Warmer weather and greater humidity cause a loss of RPM.
• Operating in a higher elevation causes a loss of RPM.
• Operating with a dirty boat bottom causes a loss of RPM.
• Operating with increased load (additional passengers, pulling skiers)
causes a loss of RPM.
For better acceleration, such as is needed for waterskiing, use the next lower
pitch propeller. When not pulling skiers, do not operate at full throttle when
using the lower pitch propeller.
Recording Serial Number
Record the engine's serial number for future reference. The serial number is
located on the outboard as shown.
a - Serial number
b - Model designation
c - Year manufactured
d - Certified Europe Insignia
(as applicable)
XXXXXXX
XXXXX XX
Mercury
Marine
Serial Number
Brunswick Corp.
Made in Japan
XX
XXXX XXX
HP XXX
LB XXX
KG XXX
KW XXX
Model Number
b
c
a
d
CAN ICES-2 / NMB-2
74489
GENERAL INFORMATION
16 eng