Ryobi
Oil Burning / Valve Seal or Ring Wear
Generator runs but emits white or bluish smoke, especially on startup.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Overfilled engine oil, Worn piston rings, Worn valve stem seals, Crankcase breather malfunction
How to Fix / Troubleshooting
Safety first: Turn the generator OFF and allow it to cool before checking oil level.
- Check oil level: Use the dipstick to ensure oil is not above the FULL mark. If overfilled, drain to the correct level.
- Inspect breather system: Check the crankcase breather hose for kinks or blockages. Replace a clogged breather element.
- Monitor consumption: Track oil usage over several run cycles. Excessive consumption indicates internal wear.
- Professional evaluation: Persistent blue/white smoke with correct oil level requires engine inspection by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Crankcase Breather Assembly
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