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B & S SP470 Excessive fuel causing hunting and sooty smoke from exhaust?

Even with air cleaner removed it seems like it is running with the choke is full on. I can't see a convensional choke control. Can anyone suggest a course of action please?

Dave R
November 2010
SP470Garden Tools, Lawn MowersFuel Hunting Air
Replace the carb diaphragm. Almost guaranteed fix. costs about £2 and takes 20 minutes.

phil_saunders(a)bigfoot.com

Phil Saunders
November 2010

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Mend Garden Tools, Lawn Mowers
Free repair help for SP470 lawn mowers