Section 5 - Maintenance
90-899883179 OCTOBER 2007 Page 77
5. Remove the seawater inlet hose from the seawater pump and plug the hose to prevent
water from siphoning into the engine or boat.
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6. Using a suitable adapter, connect the flushing hose from the water source to the water
inlet of the seawater pump.
NOTICE
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.
7. With sterndrive unit in normal operating position, open the water source fully.
8. Place the remote control in neutral idle speed position and start engine.
NOTICE
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.
9. Slowly advance throttle until engine reaches 1300 RPM (+/‑100 RPM).
10. Observe the water temperature gauge to ensure that the engine is operating in the
normal range.
11. Operate engine with sterndrive in neutral for about 10 minutes or until discharge water
is clear.
12. Slowly return throttle to idle speed position.
13. Stop engine.
14. Shut off the water and remove flushing attachments.
15. If the boat is out of the water: Install the water inlet hose to the aft side of the seawater
pump. Tighten the hose clamp securely.
16. If the boat is in the water: Tag the ignition switch with an appropriate tag requiring
the seawater inlet hose to be reconnected prior to operating engine.
Battery
Refer to specific instructions and warnings accompanying your battery. If this information
is not available, observe the following precautions when handling a battery.
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