why does my lawnmower stall out over grass only?
it starts fine, idles good and then when I go over grass that needs to be mowed it stalls out. In low grass, no problem.
but I have cut higher grass than this before and never had the problem. wouldn’t there be something wrong with it?

August 27th, 2009 at 2:14 am
Easy
Density
Thicker grass is more dense than the lower stuff. So, the cheap way they make mowers today it can’t handle the load. Mowers have only one speed…..’so-so’……you can’t allow the grass to get to high or the wimpy mowers can’t handle it.
August 27th, 2009 at 8:17 am
either raise the mower up or make sure the mower is only cutting half of the grass
August 27th, 2009 at 10:41 pm
sharpen blade.
August 30th, 2009 at 6:15 am
One of two possibilities. It could be that the motor was damaged by running low on oil and has lost compression, and thereby horsepower.
Or.. It could be that the governor linkage has fallen off so that when the engine is put under load it is unable to react and stalls out. I would check the governor linkage
Edit >>> On the governor issue. It could also be that the governor has fallen apart inside the block itself. When its running, reach down and move the governor by hand. It should have some resistance which will change with the engine RPM. If its damaged it will flop loosely with no change in tension with RPM change.
September 1st, 2009 at 11:56 am
Assuming that the blade is in good shape the height is set correctly I would think that the engine is running with a lean fuel mixture. This will cause it to have a loss of power. The lean mixture could be caused by a dirty carburetor or an air leak between the carburetor and the engine.