Mercury 250 XS OptiMax Operation, Maintenance & Installation Manual page 64

IMPORTANT: Visually inspect for fuel leakage from the filter while squeezing
the primer bulb until firm, forcing fuel into the filter.
DRAINING WATER FROM THE FUEL FILTER CHAMBER
NOTE: If a sufficient amount of water accumulates in the fuel filter chamber, the
engine's warning system alerts the operator with the warning horn. Some
SmartCraft gauges are capable of alerting the operator of this and other
operating conditions/faults. Refer to Warning System in the Features and
section of this manual for more information. If the warning system
Controls
alerts you to this condition, drain the water from the fuel filter chamber.
a
a - Drain hose
b - Aft hose fitting
c - Filter drain screw
1. Remove the drain hose from the aft hose fitting (right side of the
chamber). Hold the unattached end of the hose over a suitable container.
2. Loosen the filter drain screw (left side of the chamber) and allow the
contents to drain.
NOTE: If little or no liquid drains from the hose, loosen the red filter to vent the
chamber.
3. Tighten the drain screw and attach the hose.
IMPORTANT: Visually inspect for fuel leakage from the drain screw by
squeezing the primer bulb until firm, forcing fuel into the chamber.
If you experience multiple issues with water in the fuel system over a short
period of time, see your authorized Mercury dealer.
MAINTENANCE
b
54
c
29600
eng