Mercury 350 MAG Manual page 129

7. Snap the quick‑connect fitting with the water hose into the flush socket on the engine.
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8. Open the water source of the water hose to a full flow.
9. Allow the water to flush the sterndrive for 30 seconds.
10. Place the remote control in neutral idle speed position and start engine.
Without sufficient cooling water, the engine, the water pump, and other components will overheat and suffer damage. Provide
a sufficient supply of water to the water inlets during operation.
11. Operate the engine at idle speed in neutral gear. Do not exceed 1200 RPM.
12. Monitor the engine temperature while operating the engine.
13. Flush the engine for 5 to 10 minutes or until discharge water is clear.
14. Shut off the engine.
15. Allow the water to flush the sterndrive for 10 seconds.
16. Turn off the water source.
17. Disconnect the quick‑connect fitting and water hose from the flush socket on the engine by pressing the release button on
the flush socket.
90-8M0050539 MAY 2011
eng
a - Water hose
b - Quick‑connect fitting (water hose end)
a
c - Flush socket
b
c
a - Quick‑connect fitting (water hose end)
a
b - Flush socket release button
b
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NOTICE
Section 5 - Maintenance
Page 121