Warning Horn System - Manual Start Models - Mercury 40 SeaPro Operation, Maintenance & Installation Manual

FEATURES AND CONTROLS
If no water is coming out of the water pump indicator hole or flow is intermittent,
stop engine and check the cooling water intake holes for obstruction. If no
obstruction is found, there may be a blockage in the cooling system or a water
pump problem. Have the outboard checked by your dealer. Operating the
engine while overheated will cause engine damage.
NOTE: Should overheating occur and you are stranded, stop the engine and
allow it to cool down. This will usually allow some additional low speed (idle)
running time before the engine starts to overheat again. Operating an
overheated engine will cause engine damage.
If a steady flow of water is coming out of the water pump indicator hole and the
engine continues to overheat, consult your dealer. Operating an overheated
engine will cause engine damage.
LOW OIL LEVEL
The warning system will be activated if the oil level drops below the sight gauge
in the cowl when the outboard is in a vertical position. There is still oil reserve
remaining for 30 minutes of full speed operation. Refer to Fuel and Oil ‑ Filling
Oil Injection System.
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Warning Horn System ‑ Manual Start Models
The outboard warning system incorporates a warning horn beneath the bottom
cowl. The warning horn will sound if the engine overheats.
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