Removal; Installation; Flushing The Cooling System - Mercury 200 OptiMax Jet Drive Service Manual

Removal

1. Remove flywheel cover from engine.
2. Snap out the retainer and remove filter.

Installation

1. Install filter into cover.
2. Secure filter into cover with retainer.

Flushing the Cooling System

Flushing the cooling system is essential after each use in saltwater, after the boat has run aground, or when the overheat warning
horn sounds. When using the flushing attachment, ensure that the water is turned all the way on and flowing through the engine
before starting.
IMPORTANT: When using the flushing attachment do not run the engine above idle.
Never start or run the jet drive without water circulating through the cooling system to prevent damage to the unit.
a
1. Locate the flush adapter in the boat. Some boats may have the adapter mounted in the hull or mounted in the engine
compartment.
2. With engine "OFF," remove the cap from the flush adapter and attach a water hose.
IMPORTANT: Do not run the engine above idle when flushing.
3. Turn the water on all the way. Start the engine and flush the engine block for at least 10 minutes.
NOTE: An insufficient flow of water to the engine may cause the engine to overheat. If the warning horn sounds, stop the
engine immediately and allow to cool.
4. Stop the engine, turn off the water, and remove the water hose from the flush adapter. Install the cap and tighten securely.
90-8M0050731 MAY 2011
a
a - Retainer
b - Filter
b
29397
a - Flushing attachment (hull mount)
b - Flushing attachment (engine compartment mount)
b
5469
CAUTION
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Maintenance
Page 1B-9