Clogged air filter would be the best bet.
It is caused by too much gas being burned in the cylinder. As stated above a clogged air filter is one possibility. Two other possibilities are that the carburetor is out of adjustment or the choke is stuck partially closed
how to replace plug wire on a toro mower
Would you use lawn mower plugs in your car?? NO!!!!
A good lawn mower spark plug will have just a small amount of brown deposit. In addition, the gap will be very close.
Buy a plug wrench.
what spark plug do i need for a 3.75
What is the gap on the spark plug on a Brigg's stratton lawn mower Model#31P777 Type 0348E1?
.030
.024-.028
In order to change the spark plug wires in a Toro lawn mower, the engine housing should be removed. The spark plug wire will then be disconnected which is a simple twisting movement under pressure. This is a very quick procedure.
The spark plug gap for a Murray 12 hp riding lawn mower should be set at .020 inches. This is equal to .5 mm.
NO, lawn mower spark plugs and a car's spark plug are different lengths, heat range and gap. Even if it fits the threads for the hole you run a high risk of causing major damage to the engine.
The spark plug gap for 2 cycle lawnboys is 0.025