Question about Briggs & Stratton Electrical Supplies
Engine starts well and have to keep at full throttle for a while or it dies. Once it warms up I lower the idle and the engine seems to fluctuate. I don't know it it's the governor or adjustment of the carburator. Any advice?
This sounds like a carb problem. While there are not adjustments on the carburetor other than the idle stop screw, you can still disassemble the carb and clean it out. For what it's worth the flapper thing at the engine side of the carb is the throttle, that other flappy thing at the air cleaner side of the carb is the choke. :-)
Modern day small gas engines like this have really small holes in the carb compared to the good old days. You should carefully look in the fuel tank for any junk and dirt that may have sneaked in there (blow it out with air), also look at the fuel line and if it's not soft and nice replace it. Lastly be sure to poke a thin wire thru all of the holes in the carb when you're cleaning it, dirt hides everywhere.
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Posted on Dec 03, 2008
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Posted on Jan 02, 2017
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Engine stalls or RPM
fluctuates at idle up and down or dies near idle.
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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