There is smoke coming out of my lawnmower - RTO Husband on Lawn Mower Whirligig

Head gaskets should be copper or alloy. NOT RTV!

Try this...and use a better quality gas..


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too much oil or oil in gas

ether to much oil are you have bad rings if rings get a snapper lawnmower

Did you notice this after the engine oil was changed. If you overfill oil it will smoke. Check oil level. Let me know if this helped. I have other ideas, but this is the most common problem with smoking.

There is a few things that I would check and might come to a solution to your issue follow this and will help diagnose your mower. Has this engine been over filled with oil?
Has the lawnmower been turned on its side to clean?
Has it ever been serviced because the carburettor diaphragm and air filter need to be changed on a yearly basis.

check your sparkplug clean or replace, also crank it several times without sparkplug in it to blow out the cylinder, did you have it on it's side for anything?

check carb an get a can o sea foam

white smoke means that there is water in the fuel air mixture during combustion. a bluish white smoke means oil is being burned during combustion. take another look and make sure which one it is. since all mowers ive seen are air cooled the only way water can be getting in the fuel air mixture is through the gas cap. check your gas tank and gas can for water. may be best to empty both and start over with fresh fuel

the white smoke is oil - did you overfill the oil ? if you tipped the machine your air filter could be full also - if this is an old machine it could be ready to throw a rod but not enough info from you to tell