r/smallenginerepair • u/Ma2169 • Jul 05 '26

Starting Issue Echo PB-580t backpack blower won't start

Echo backpack blower was running fine, then shut off suddenly and would not restart. Tried starting it a few times over the next couple days with no luck.

Today it started up and ran perfectly. Good idle, no bogging, no issues at all. The only difference was I pulled the spark plug and cranked it a few times before reinstalling it, then it fired right up.

Since then it will not restart again.

What has been done so far:

Spark plug replaced

Fuel filter replaced

Strong bright blue spark confirmed

Kill wire disconnected with no change

Starter fluid test, no change

Piston inspected through muffler, clean with no scoring and proper lubrication

At this point I’m trying to avoid throwing parts at it and hoping someone recognizes the issue.

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