B&S Mower Engine Won't Keep Running

Dick k

Forum Newbie
Joined
Sep 18, 2022
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Wow, thanks! I have already replaced the 394 diaphragm and checked the 612 screen. But didn't know about the screw tightening sequence, maybe I messed something up. It's now past mowing weather so I have time to work on it. Thanks again!
 

bertsmobile1

Lawn Royalty
Joined
Nov 29, 2014
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24,647
FWIW
I usually take the tank off and drop the tank down on top of the carb & diaphragm to avert the chance of getting the diaphragm & gasket out of place then fitting them
The problem I usually find is the diaphragm is in the wrong place
 

mechanizm

Active Member
Joined
Jul 30, 2017
Threads
11
Messages
91
Replaced the diaphragm, checked for trash in the fuel pickup, all good. Ran somewhat better after this but very rough as if fuel mixture is off. I guess I could replace the carb??
it might be running rich since it starts fine and dies when warm. carbs are cheap on ebay. buy one and let us know...
 
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