Echo 330T carb - what is this ?

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It's supposed to go to a compensation valve on the air cleaner , which affects the fuel pumping of the carburetor when packed with debris. Just leave it unplugged, it makes no difference and clean you air filter!
I put a short length of fuel line on mine to keep fines from getting into the carb cover.
 
It's supposed to go to a compensation valve on the air cleaner , which affects the fuel pumping of the carburetor when packed with debris. Just leave it unplugged, it makes no difference and clean you air filter!
I put a short length of fuel line on mine to keep fines from getting into the carb cover.
Got it, thank you.
 


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