Flushing The Cooling System (Powerhead) - Mercury 225 Pro XS User Manual

• Remove engine deposits with Power Tune Engine Cleaner.
EVERY 100 HOURS OR ONCE A YEAR, WHICHEVER
OCCURS FIRST
• Replace water pump impeller (more often if overheating occurs or
reduced water pressure is noted).
• Use QuicKleen in fuel.
EVERY 100 HOURS OF OPERATION
• Inspect Carbon Fiber reeds for chipping or cracks.
EVERY 200 HOURS OR ONCE EVERY TWO YEARS,
WHICHEVER OCCURS FIRST
• Replace water separating fuel filter.
• Check the spark plug gap and replace if necessary.
BEFORE PERIODS OF STORAGE
• Refer to Storage section.

Flushing the Cooling System (Powerhead)

Flush the internal water passages of the engine with fresh water after each
use in salt, polluted or muddy water. This will help prevent a buildup of
deposits from clogging the internal water passages.
a
a - Plug located on fitting
b - Water hose
1. Remove the plug from fitting in the bottom cowl.
2. Attach a water hose to the fitting. Turn on the water and flush for three
to five minutes.
NOTE: The engine can be stopped or operated at idle speed when flushing
the cooling system. Do not flush engine using a water system that exceeds
310 kPa (45 psi).
1. These items should be serviced by a authorized dealer.
MAINTENANCE
1.
58
b
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