lawn mower motor is smoking?

Question

i hace a sears mower brigs and stration,, not old,when i start it it smokes . i lent it to some one and he brought it back and said its smoking ,, did he trun it over and the oil came up
.? and it seems like oil is comming out exaust, did he add to much oil ,, or is a gasket bad ? he says he did not do nothing

Answer 1

Check the engine oil level. If it's high, and, no one added any oil, you probably have a leaking carburator float needle and seat.
The gas in the carburator overflows into the intake, make it's into the cylinder, past the rings, and dump into the crankcase raising the level of the oil by mixing with it.

If the oil level is OK, then someone may have added kerosene or diesel to the gas by accident.

Also check the throttle control. If it has a choke, it may be stuck in the closed possition.

Also check the air filter, if it's plugged, or saturated with gas or oil it will not let enogh air into the engine.

Answer 2

sounds like the motor has burned out, yes you are screwed. a tip for the future when cutting long grass with an electric mower always lift one side at an angle to ease the work load on the motor :))

Answer 3

My lawn mower also smoke a little when I start it. Nothing to worry about. It's just burning off excess oil. As long as it runs, it's good.

Answer 4

Just a thought, check the air filter. If the smoke is black instead of white then a dirty air filter could be causing it to run rich (too much fuel.)

Answer 5

Here's the main answer..... never lend stuff out...


If its white, its oil...... if its black, its too much fuel.

I'd make sure it wasn't overfilled with oil first, I've seen some people not even check it and dump oil in.

Answer 6

The patch may work, if not then tell it to go cold turkey. hahahahahahahahah

Answer 7

YAAAA i remember when i smoked with my lawnmower.... good times...

Answer 8

probably both