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home Fix label Garden Tools label_important Lawn Mowers category Briggs & Stratton

Why is my B & S Sovereign 375 petrol lawn mower running erratically?

Hi, Can you please advise why my B & S Sovereign 375 petrol lawn mower is running erratically, lacking power (with lowish revs) and exhausting more smoke than normal. I've renewed the spark plug, cleaned the air filter and also added a petrol supplement designed for lawn mowers with no improvement.
Thanks
K James, July 2009
home Fix label Garden Tools label_important Lawn Mowers category Briggs & Strattondone
change the carb diaphram

Stuart, August 2009
link Click here to see other fixes for Briggs & Stratton Sovereign 375.

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