Mercury Racing HP565, Manual, Page: 105 / 151

MAINTENANCE
eng
93
19310
SportMaster Low Water Pickup
NOTE: Flushing is needed only for salty, brackish, mineral laden
or polluted water applications. Flushing is recommended after
each outing.
NOTICE
Flushing the engine with the boat in the water can cause
seawater to flow into the engine, resulting in engine damage.
Close the seacock before flushing the engine. Keep the
seacock closed until starting the engine.
1. Drain the seawater section of the cooling system.
2. If flushing the cooling system with the boat in the water:
a. Raise sterndrive unit to trailer position.
b. Install the appropriate flushing attachment over the water
inlet holes in the gear housing.
c. Lower sterndrive unit to full down/in position.