Hi, The float valve is leaking through. The fuel can leak in the intake and down into
the crankcase, where it dilutes the engine oil.
Can I buy a replacement gas cap for.my riding lawn mower
Float is bad in Carb or needle valve not closing causing fuel to leak into cylinder
If it is a push mower there are only a couple things that will cause the mower to smoke. 1) The rings are worn and need replaced. This lets oil seep past the rings and burns the oil in the cylinder. This will cause a white smoke. (this is probably the most common cause for engines smoking) 2) The carburetor is putting too much gas in the engine. This will cause the engine to run rich and make a black smoke. 3) There is an external oil or gas leak that is leaking onto the motor and burning from the heat of the engine. If it is a riding mower there are many more things that could cause it to smoke.
I am assuming that the mower doesn't start.... My first guess would be that you are not getting spark to ignite the gas in the engine. Check to see if you have spark at the spark plug.
It needs to be replaced.
Can you use 98 octane gas in a John deere d110 riding mower
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Stop feeding it beans!
Most lawn mowers have 4-stroke gas engines. Some have 2-cycle, and if you are talking about riding mowers, some even have diesel.
Dirty or stuck open needle valve in carburetor.
Check the belt.
over filled the oil