Inspection And Maintenance Schedule; Flushing The Cooling System - Mercury Jet 65 Manual

Inspection And Maintenance Schedule

BEFORE EACH USE
• Check that lanyard stop switch stops the engine.
• Visually inspect the fuel system for deterioration or leaks.
• Check outboard for tightness on transom.
• Check throttle, shift, steering system for binding or loose components.
• Remote control models - Visually check steering link rod fasteners for proper tightness. See Steering Link
Rod Fasteners.
• Make sure the driveshaft bearing on the jet drive is lubricated. See Lubrication Points.
AFTER EACH USE AND AFTER EVERY 10 HOURS OF OPERATION
• Lubricate the driveshaft bearing on the jet drive. See Lubrication Points.
AFTER EACH USE
• Flush out the outboard cooling system if operating in salt or polluted water. See Flushing The Cooling System.
• If operating in salt water, wash off all salt deposits and flush out exhaust outlet on the jet drive with fresh water.
EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER OCCURS FIRST
• Lubricate all lubrication points. Lubricate more frequently when used in salt water. See Lubrication Points.
• Inspect and clean spark plugs. See Spark Plug Inspection and Replacement.
• Check engine fuel filter for contaminants. See Fuel System.
• Check carburetor adjustments, if required.
•
Check engine timing setup.
•
Lubricate splines on the driveshaft.
• Check corrosion control anode. Check more frequently when used in salt water. See Corrosion Control
Anode.
• Check power trim fluid.
• Inspect battery. See Battery Inspection.
•
Remote control models - Check control cable adjustments.
• Remove engine deposits with Quicksilver or Mercury Precision Power Tune Engine Cleaner.
• Check tightness of bolts, nuts, and other fasteners.
EVERY 300 HOURS OF USE OR THREE YEARS
•
Replace water pump impeller (more often if overheating occurs or reduced water pressure is noted.)
BEFORE PERIODS OF STORAGE
• Refer to Storage procedure. See Storage section.

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 Parts or Quicksilver accessory hose coupling.
1. Remove plug and gasket.
2. Thread in hose coupling.
These items should be serviced by an authorized dealer.
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