Question about Craftsman 118 pc Dual Marked Mechanics Tool Set

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Primer bulb won't hold prime on Craftsman chainsaw. Runs few seconds then dies.

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Check the fuel filter, air filter, and muffler for plugging. Check the fuel lines for decay or other damage. Remove the carburetor and check the impulse passage that runs from the crankcase, through the gaskets and heat insulator, to the carburetor base--these impulses cause the carburetor to pump fresh fuel into itself. You may need to clean the carburetor inside and out with spray carburetor cleaner. Check the diaphragm in the lower chamber for softness and no damage. Go to: http://www.drystacked.com for a 12 page article on Walbro brand carburetors for theory and troubleshooting--this applies to other brand carburetors as well. Hope some of this helps!

Posted on Aug 07, 2010

  • analwon Apr 30, 2011

    What has this address to do with Walbro brand carburteors? http://www.drystacked.com Nothing as far as I could, or couldn't find. What did I miss?

  • drallim Apr 30, 2011

    That address used to take you to the Walbro site, but now requires additional address text: httpt://.drystacked.com/Walbro carburetor theory 27JUN2010.pdf If you do a web search for
    Walbro carburetor theory, this is the first entry. The site has been improved from it's initial iteration. Good luck.

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