Question about Husqvarna , No.455 Rancher, 20" Gas - Powered Chainsaw
Did you check for blue, snappy spark at the plug (gapped at 0.020") when you replaced it? If ok, put some fuel mix into the plug hole and try for start--it should pop several times. If ok, check the fuel filter, air filter, and muffler for plugging. Check the fuel lines for any decay or other damage. Make sure the carburetor fasteners are tight. Does the primer bulb pull fuel into itself after several pumps? If nothing, remove the fuel line from the carburetor that has the filter inside the tank and place it on the primer port that has the line coming from the carburetor. Try to pump fuel again--if successful, then remove the carburetor from the engine and clean it inside and out with spray carburetor cleaner. Check the lower chamber diaphragm for flexibility and no cracks or holes. There is also a small mid-body filter that can easily plug with stale fuel mix. Hope some of this helps!
Posted on Jul 14, 2010
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Posted on Jan 02, 2017
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