50
MAINTENANCE
1-6
b
c
a
Flushing the Cooling System - Using Cowl
Flushing Attachment
NOTE: Let engine cool to ambient temperature before flushing
system.
Flush the internal water passages of the outboard 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.
NOTE: Engine should not be running when flushing the cooling
system. Do not flush engine using a water system that exceeds
45 psi.
1 Remove plug (a) from valve body (b) in the bottom cowl (port
side).
2 Attach coupling assembly (22-852400) (c) to the valve body (b).
located in the bottom cowl (port side).
3 Attach a water hose to the coupling assembly (c).
4 Turn water supply on and flush engine for 3 to 5 minutes. Verify
water dump from tell-tale hose.
5 Turn off the water, and remove the flushing attachment.
6 Insert plug (a) into valve body (b) (tighten securely).
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