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the engine running to slow with black smoke?

i have classic 35 however it starts ok but the engine rpm not right there is black smoke coming out if i take the plug out it is well carbonated briggs & stratton model m354op

alban norrby
July 2009

Briggs & Stratton Garden Tools, Lawn Mowers Engine Black Smoke Starts

Try the air filter. Run it without the air filter in to se if it improves.
If it does then get a new air filter.

Jimmy.
July 2009

Change the carb diaphragm. 99% guaranteed fix - costs about £1.

phil_saunders(a)bigfoot.com

Phil Saunders
July 2009

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the engine running to slow with black smoke?

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