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Idle ports may be plugged or blocked - This is the small ports in the carburetor where the fuel passes through when in idle. ... Vent in the Fuel Cap is plugged - If the vents in the fuel caps are clogged the fuel becomes vacuum locked. ... Starting with the High Speed screw, turn it ...
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https://www.youtube.com/watch?v=aIUVQziXBPY
Jul 7, 2011 - Uploaded by BriggsRepair
Is this Craftsman 16" chainsaw broken? Hardly. Watch this carburetor fix and how it runs brand new!
Check your fuel filter in case it is clogged. When starting pull cord on full choke 5 times quickly. Wait 2 or 3 seconds...try again if it asks like it wants to start..then put on 1/2 choke...goes thru same process. Check spark plug.
Hi, from what you have written I believe you have a faulty cdi unit. Carbys don't generally run perfectly intermittently. To test the cdi theory, close the sparkplug gap to approximately half normal gap. If the saw runs fine you have a faulty cdi, shorting ht lead or stop wire. Regards Phil.
Jets in chainsaw may have build-up. A good build-up remover is called SeaFoam. Add this by direction to the gas. When using the SeaFoam you need to run full throttle with intermittently full choke until motor runs smooth with no choke.
Double check 2-cycle mixture. Too lean mixture in the chainsaw wont stay running.
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