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Christopher ClarkJul 30, 2025
What to do if my Echo CS-450 Chainsaw engine cranks but won't start?
- DDawn KellyJul 30, 2025
If your Echo Chainsaw engine cranks but struggles to start or doesn't start at all, several factors could be at play. There might be no fuel reaching the carburetor (clean or replace it). The spark plug gap may be incorrect, covered with carbon, fouled with fuel or defective (adjust to .65mm (0.026in.), clean or replace, replace plug). Ensure the switch is turned to the ON position. For issues like no fuel at the cylinder or further assistance, consult your Echo dealer.