Inspecting the exhaust system. Carbon monoxide can cause severe nausea, fainting, or death. For the safety of the craft’s
occupants, install a carbon monoxide detector. Never operate the generator set without a functioning carbon monoxide detector.
Inspect the detector before each generator set use.
1. Press the generator set OFF/RESET button to shut down the generator set.
2. Disconnect the power to the battery charger, if equipped.
3. Disconnect the generator set engine starting battery, negative (-) lead first.
At the interval specified in the service schedule, inspect the exhaust system components (exhaust manifold, mixing elbow,
exhaust hose, hose clamps, silencer, and outlet flapper) for cracks, leaks, and corrosion. See the Service Views section for the
exhaust outlet location.
Ensure that the carbon monoxide detector(s) is (1) in the craft, (2) functional, and (3) energized whenever the generator set
operates.
For your safety: Never operate the generator set without a functioning carbon monoxide detector(s) for your safety and
the safety of others on your vessel.
Exhaust System Inspection Points
Check for exhaust leaks and blockages. Check the silencer and piping condition and check for tight exhaust system connections.
• Check the hoses for softness, cracks, leaks, or dents. Replace the hoses as needed.
• Check for corroded or broken metal parts and replace them as needed.
• Check for loose, corroded, or missing clamps. Tighten or replace the hose clamps and/or hangers as needed.
• Check that the exhaust outlet is unobstructed.
• Visually inspect the exhaust system for exhaust leaks (blowby). Check for carbon or soot residue on exhaust
components. Carbon and soot residue indicates an exhaust leak. Seal leaks as needed.
4. Check that the generator set is OFF.
5. Reconnect the generator set engine starting battery, negative (-) lead last.
6. Reconnect the power to the battery charger, if equipped.
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