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Michael ToddJul 27, 2025
Why does my Echo SRM - 410U engine crank but not start?
- TTracy WilsonJul 27, 2025
If your Echo Trimmer engine cranks but struggles to start or doesn't start at all, several factors could be at play. It may be due to a lack of fuel at the carburetor, in which case you should clean or replace it. Alternatively, there might be no spark at the plug; try adjusting it to .65mm (0.026in.), cleaning or replacing it, or replacing the plug entirely. Other causes could be a muffler wet with fuel, in that case you should open the choke, clean/replace the air filter, and adjust the carburetor. For issues like no fuel at the cylinder or no spark at the end of the plug wire, it's best to consult your Echo dealer. Also, make sure the switch is turned to the ON position.