Mercury 40 jet fourstroke User Manual page 97

• Check that lanyard stop switch stops the engine.
• Visually inspect the fuel system for deterioration or leaks.
• Inspect the outboard for tightness to the boat transom. If any
looseness of the outboard or mounting fasteners exist,
retighten the outboard mounting fasteners. When looking for
signs of looseness, look for loss of outboard transom
bracket material or paint caused by movement between the
outboard mounting fasteners and the outboard transom
brackets. Also look for signs of movement between the
outboard transom brackets and the boat transom.
• Check steering system for binding or loose components.
• 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
• Flush out the outboard cooling system if operating in salt or
polluted water. See Flushing the Cooling System.
• If operating in saltwater, wash off all salt deposits and flush
out the 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 saltwater. See Lubrication Points.
• Change engine oil and replace the oil filter. The oil should
be changed more often when the engine is operated under
adverse conditions such as extended trolling. See Changing
Engine Oil.
• Inspect thermostat visually for corrosion and broken spring.
Make sure thermostat closes completely at room
temperature.
• Check engine fuel filter for contaminants. See Fuel System.
•
Check engine timing setup.
1. These items should be serviced by an authorized dealer.
eng
MAINTENANCE
1.
85
1.