• Check the torque of the outboard mounting hardware—dealer item
• Check the battery condition and tightness of the battery cable connection,
if equipped—dealer item
THREE YEARS OR 300 HOURS
• Replace the spark plugs
• Replace the water pump impeller—dealer item
• Inspect the carbon fiber reeds, if equipped—dealer item
• Inspect the wire harness connectors—dealer item
• Check the remote control cable adjustment, if equipped—dealer item
• Replace the high‑pressure fuel filter, if equipped—dealer item
• Replace the accessory drive belt, if equipped—dealer item
• Check the power trim fluid level, if equipped—dealer item
• Inspect the engine motor mounts—dealer item
Flushing the Cooling 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.
Use a Mercury Precision or Quicksilver accessory (or equivalent) flushing
attachment.
1. Remove the water plug from the motor, and install in the flushing
attachment (hose adapter).
2. Attach a hose to the flushing attachment.
3. Turn on the water and adjust the flow so water is exiting the water pump
indicator hose.
a - Flushing attachment
b - Water pump indicator hose
4. Continue flushing the outboard for five minutes.
5. Turn off the water and remove the flushing attachment. Install the water
plug.
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