Question about Garden
My mower runs for 10 to 20 min then shuts off and won't start again
If you have a Briggs & Stratton this problem is there is not enough valve clearance . IT is a major problem with B&S motors as the valve stems stretch with use and the clearance is lost and when hot the valves are held open. Remove the valves and grind the end to obtain correct clearance.
Posted on Apr 26, 2013
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Posted on Jan 02, 2017
I would agree with the gas cap being the problem. There should be a insert inside the cap which helps with the tap pressure. If this is lost then the engine will run for a few min. and shut off.
There is one other thing and that is the float in the carb bowl. It may be allowing in just enough gas to fill the bowl and then it is sticking. This would account for just enough fuel to run for a brief period and then shut down.
Posted on Mar 10, 2009
When you let it sit did you remove all the fuel or add a additive? If you did not then I would recommend that you remove all the fuel and add brand new fuel to your system. Gasoline only last for about 3 to 4 months before it will start to go bad and this sounds like your problem
Posted on May 22, 2009
1 of 2 things happening
first change the fuel filter seams that the gas is vapourizing
If that does not fix it replace the engine coil as it heats up it is breaking down in voltage causing the engine to die
Posted on Jun 26, 2009
I am having a problem with my lawn tractor similar to what you describe. Mine runs fine for 15 to 20 minutes and then stalls. It will start back up and run for a few minutes and then stall again. When it stalls it is like when you get off of the seat with the blades engaged. I have replaced the gas and fuel filter and have cleaned the carb and air cleaner with no effect on this problem. I am now thinking that the problem is the fuel stoper located at the bottom of the carb. There is a plunger screwed into the bottom of the carb bowl that is held down when the key is turned on. If you get off of the seat when the engine is running and the brake is not on or the blades are engaged the stoper is pushed up into the main jet fuel path causing the engine to stall. I am going to fabricate a heat shield around this plunger to see if this corrects the problem.
Posted on Jun 25, 2010
SOURCE: have a john deere sabre
Some mowers have a mowing reverse safety switch. That safety will kill the mower if you try to reverse with the deck engaged. Some mowers even have an override button that has to be held while backing up. As for the battery thing, no matter how much you charge a bad battery you will not get it to start a mower if it has a bad cell or two. I would use a multimeter to check battery voltage, but the end result would still be the same, replace the battery.
I hope this gets you going again.
Posted on Aug 07, 2011
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