Mercury Racing 500R Operation And Maintenance Manual page 100

3. Remove the cover from the flush connector and thread a water hose into
the flush connector.
4. Turn on the water tap (1/2 maximum) and let the water flush through the
cooling system for about 15 minutes.
5. When flushing is complete, turn off the water and disconnect the water
hose.
6. Install the cover onto the flush connector.
7. Guide the tether into the bottom cowl while pushing the flush connector
back into the bottom cowl, then turn the flush connector 1/4 turn clockwise
to secure.
IMPORTANT: If the tether interferes with the bottom cowl while pushing the
flush connector in, turn the flush connector counterclockwise, then clockwise
while pushing in to secure the connector.
MULTIPLE ENGINE FLUSH (WITH AN AUTOMATIC OUTBOARD
FLUSHING SYSTEM)
1. With the engines turned off, place the outboards in a convenient position.
2. Thread a water hose into the flush quick connector (5/8 in. garden hose
recommended).
b
a
MAINTENANCE
a - Flush connector
b - Water hose
a
b
68590
a - Water hose
c
b - Flush quick connector
c - To water tap
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eng