Question about Briggs & Stratton Lawn-Boy Insight Series 21-Inch 190cc 650 Series Gas Powered Engine Variable Speed Self-Propelled Lawn Mower
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Posted on Jan 02, 2017
SOURCE: have Bolens series 080 22
When you take off the carburetor initially, you should change the gasket if it tears or just old looking, your problem is in the carburetor, probably. Take it apart remembering where the parts go. There are some diaphragms or gaskets and screens on some, tiny jets and such that are inside the little "bulb" or bowl, that can usually be taken off with a 10mm wrench. They also have little fiber gaskets and a bowl gasket or o-ring that must be in great condition with no trash. Clean off with starter fluid or carburetor cleaner.
Posted on Jun 18, 2009
This is not unusual at idle; there is a governor to limit maximum RPMs and this device isn't worth beans at an idle.
You may be able to carefully adjust the idle adjustment (see your manual or B&S website) to achieve a somewhat more even idle speed.
Posted on Aug 20, 2009
Could be float in carb.sticking.Take carb off & apart.Put float in water to see if it floats.Check float by shaking next to ear.If you hear any sound,you need a new float.
Posted on Aug 29, 2009
your engine is only running on the fuel you are pumping in, the carb. is not lifting the fuel on its own, maybe because of water in the bowl or dirty jets. You must take the bowl of and clean it out and depending on the type of carb. it might need a new diaphragm. Stephen.
Posted on Apr 25, 2010
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