Draining Water From The Cool Fuel Module - Mercury 540 Bravo Manual

COLD WEATHER OR EXTENDED STORAGE
2. Remove the port side blue drain plug.
3. Remove two blue drain plugs from the seawater pickup pump (front,
starboard side).
a a
a - Starboard side blue drain plugs
b - Port side blue drain plug
4. Verify that water is draining from each opening.
5. Allow the system to drain for a minimum of five minutes. Mercury
MerCruiser recommends leaving the drain system open while transporting
the boat or while performing other maintenance to ensure that all water is
drained.
6. For DTS engines, pull the lanyard stop switch (if equipped), or disable the
ignition circuit by pulling the fuse marked "CD."
7. Crank the engine over slightly with the starter motor to purge any water
trapped in the seawater pickup pump. Do not allow the engine to start.
8. Prior to launching the boat or starting the engine, close the drain system
by installing the two blue drain plugs.

Draining Water from the Cool Fuel Module

Mercury MerCruiser recommends draining the Gen 3 Cool Fuel Module if it is
equipped with a drain plug.
1. Remove the drain plug from the Gen 3 Cool Fuel Module and allow the
water to completely drain from the module.
2. Inspect the drain plug and the O‑ring for damage. Replace if needed.
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