Flushing The Power Package-Models With A Flushing Attachment - Mercury T6200 TowSport Operation And Maintenance Manual

Section 4 - Maintenance
b. If not equipped with a seacock, disconnect the seawater inlet hose from the seawater pump inlet fitting and
immediately plug the seawater inlet hose to prevent water from siphoning into the engine or boat.
c. Install an appropriate connector onto the flushing water supply hose and install onto the water inlet of the seawater
pump.
d. Proceed to step 3.
Flushing the engine when it is not operating will result in water collecting in the exhaust system, damaging the engine. Do not
supply flush water for more than 15 seconds without the engine operating.
3. Open the water source to provide maximum water supply.
4. Place the remote control in the neutral idle speed position.
5. Immediately start the engine.
Operating the engine out of the water at high speeds creates suction, which can collapse the water supply hose and overheat
the engine. Do not operate the engine above 1400 RPM out of the water and without sufficient cooling water supply.
6. Press the throttle only button and slowly advance the throttle until the engine reaches 1300 RPM (± 100 RPM).
7. Observe the water temperature gauge to ensure that the engine is operating in the normal range.
8. Operate the engine in neutral for at least 10 minutes.
9. Slowly return the throttle to the idle speed position.
10. Stop the engine.
11. Immediately shut off the supply water and remove the flushing attachment.
12. Install the water inlet hose to the seawater inlet of the seawater pump or V‑drive water inlet.
13. Tighten the hose clamps securely.
14. Tag the ignition switch with an appropriate tag requiring the seacock to be opened prior to operating the engine.
Flushing the Power Package—Models with a Flushing Attachment
NOTE: Flushing is needed only for salty, brackish, mineral‑laden, or polluted water applications. Flushing is recommended after
each outing for best results.
IMPORTANT: Do not allow the engine to pull air or seawater from alternative water pickup sources during the flushing
procedure. If equipped, ensure that all alternative water inlet hoses are plugged at both ends.
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Seawater inlet hose connection
NOTICE
NOTICE
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90-8M0128975 JUNE 2017
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