Mercury 75 OptiMax Owner's Manual page 80

DRAINING WATER FROM THE FUEL FILTER CHAMBER
NOTE: If a sufficient amount of water has accumulated in the
fuel filter chamber, the warning system will turn on. Draining the
water from the fuel filter chamber is required.
1. Pull the drain hose off the right side fitting. Hold the open
end of the hose over a container.
2. Use a 1/8 in. hex wrench and loosen the drain screw and
drain the fuel filter chamber.
a
a - Drain hose
b - Right side fitting
c - Drain screw
3. Retighten the drain screw and reattach the hose.
IMPORTANT: Visually inspect for fuel leakage from the drain
screw by squeezing the primer bulb until firm, forcing fuel into the
chamber.
MAINTENANCE
b
70
c
23743
eng