How to troubleshoot Yamaha EF4500iSE when the engine won’t start?
- DDr. Anna KellerJul 31, 2025
If your Yamaha Portable Generator engine won’t start, make sure fuel is supplied to the combustion chamber. Check that the fuel cock knob is in the 'ON' position and that the fuel line and carburetor are not clogged – clean them if necessary. Also, ensure the engine oil level is sufficient and turn the engine switch to 'START'. If the spark plug is wet, remove carbon or wipe it dry.