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Section 4 - Maintenance
6.
Connect the hose between the flushing attachment and the water source.
7.
With the sterndrive in a normal operating position, open the water source fully.
8.
Disengage the E‑stop switch, place the remote control in the neutral idle speed position and 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.
9.
Press the throttle only button and slowly advance the throttle until the engine reaches 1300 RPM (± 100 RPM).
10. Observe the water temperature gauge to ensure that the engine is operating in the normal range.
11. With the sterndrive in neutral, operate the engine for at least 10 minutes.
12. Slowly return the throttle to the idle speed position.
13. Stop the engine.
14. Shut off the water.
15. If the boat is moored in the water, remove the seawater inlet hose from the seawater pump and plug the hose to prevent
water from siphoning into the engine.
16. Remove the flushing attachment.
17. Tag the ignition switch with an appropriate tag requiring the seawater inlet hose to be connected prior to operating the
engine.
18. Install the propeller.
Alternative Water Pickups
IMPORTANT: Two water sources are needed for this procedure.
NOTE: Flushing is only required after operation in salty, brackish, mineral‑laden, or polluted water. Flushing is required after
each outing for best results.
IMPORTANT: When flushing Bravo model engines out of the water, you must have a supply of cooling water available to both
the sterndrive and to the engine during operation.
1.
If flushing the cooling system with the boat in the water:
a.
Raise the sterndrive to the trailer position.
b.
Install the appropriate flushing attachment over the water inlet holes in the gear housing.
c.
Lower the sterndrive unit to full down (in) position.
2.
If flushing the cooling system with the boat out of the water:
Rotating propellers can cause serious injury or death. Never operate the boat out of the water with a propeller installed.
Before installing or removing a propeller, place the drive unit in neutral and engage the lanyard stop switch to prevent the
engine from starting. Place a block of wood between the propeller blade and the anti‑ventilation plate.
a.
Engage the lanyard stop switch and remove the propeller.
b.
Lower the sterndrive to full down (in) position.
c.
Install the appropriate flushing attachment over the water inlet holes in the gear housing.
3.
Connect the hose between the flushing attachment and the water source.
4.
Close the seacock, if equipped, to prevent water from siphoning into the engine or boat.
Page 78
NOTICE
WARNING
!
90-8M0128976
MAY 2017
eng
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