Mercury Jet OptiMax 80, Manual, Page: 83 / 128

MAINTENANCE
73
4. Before installing spark plugs, clean off any dirt on the spark
plug seats. Install plugs finger tight, and then tighten to the
specified value.
Description Nm lb. in. lb. ft.
Spark plug 27 20
Steering Pull Adjustment
The steering on some boats will have the tendency to pull towards
starboard. This pulling condition can be corrected by using a pliers
and bending the ends of the exhaust fins 1.5 mm (1/16 in.) toward
the starboard side of the outboard.
a
29573
a - Exhaust fins
Worn/Dull Impeller
The intake of gravel through the pump can round off and wear the
leading edges of the impeller. Some conditions that could be
experienced from a worn/dull impeller are as follows:
• Noticeable performance loss, especially on acceleration
• Difficulty getting the boat on plane
• An increase in engine RPM at wide open throttle
IMPORTANT: Do not sharpen or alter the top side lifting angle.