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My lawnmower's carborator is puffing out white smoke when I start it, how do I fix this?

Hi, I'm a fourteen year old who cuts my mothers lawn when it needs tending. I also go cutting lawns for a job. When we moved in our house our landlord loaned us her lawn mower. The lawn mower is a Craftsman Platinum 190cc 22" Briggs & Stratton Rear Bag Rear Propelled Lawn Mower. It is the best lawn mower I ever used. Two weeks ago, the lawn mower puffed out a little bit of smoke and I assumed that it was because I probably overfilled the tank. Today when I when to start the mower, the carborator blew out a lot of smoke. The amount of smoke coming from the carborator lowered, but it kept puffing out smoke. I would like to fix this because I don't want to return the landlords lawn mower in a bad state.

Craftsman , Lawn Mowers
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2 Answers from these members:
Manage My Life
Hello, I see you are having problems with your appliance. If you wouldlike you may visit the sears home services website. If that doesn't help you can always go to the top of the page on manage my life and go to the manuals tab. I have attached the link below. I hope this helps.
by Manage My Life
July 19th, 2010
Answered in 7 minutes
0 votes
Mark T
White smoke is caused by oil burning. I recommend checking the oil level. If the oil were over filled, it would cause the engine to smoke. Once you have the oil level set to the proper level check the air filter. If the engine was over filled with oil, it could have soaked the paper air filter with oil. If the air filter is soaked in oil or dirty, you need to replace it. Before installing the air filter start the mower and let it run fore a few minutes. This should clear all of the oil out of the carburetor and muffler. The mower should be done smoking at this point. If the smoking has stopped, reinstall the air filter. The mower should be back to normal. If you need any more help please submit more details

If you need an owner’s manual for this mower, you can click on the following link.


Here is a link to order any parts you need.

Sears Parts Direct


If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations:

Sears Home Services

by Mark T Earned 58,303 community points in Craftsman
July 21st, 2010
0 votes
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