Section 5 - Storage
90-8M0113859 eng DECEMBER 2015 Page 101
Three‑Point Manual Drain System—Seawater Cooled
Boat in the Water
NOTE: Use this procedure if your engine is not equipped with an air actuated single‑point drain system or if the air actuated
single‑point drain system fails.
1. Close the seacock (if equipped) or remove and plug the water inlet hose.
2. Remove the blue drain plug from the distribution housing (lower front, port side).
a - Blue drain plug
3. To properly vent the cooling system, remove the blue drain plug from the side of the non‑catalyst thermostat housing within
30 seconds.
Blue drain plug
4. Remove the two blue drain plugs from the seawater pickup pump (front, starboard side).
a - Two blue drain plugs, starboard side
5. Verify that water is draining from each opening.
6. Allow the system to drain for a minimum of five minutes. We recommend leaving the drain system open while transporting
the boat or performing other maintenance to ensure that all water is drained.
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. Before launching the boat or starting the engine, close the drain system by installing the four blue drain plugs.
9. Open the seacock, if equipped, or unplug and reconnect the water inlet hose prior to operating the engine.
Boat Out of the Water
NOTE: Use this procedure if your engine is not equipped with an air actuated single‑point drain system or if the single‑point
drain system fails.
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