White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil

maxcalvada

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  • / White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil
Briggs and Stratton 550 self propelled/Poulon Pro.

Have replaced the spark, cleaned the carb(with carb spray), replaced the oil/checked the oil level and installed a new breather. When I start the engine the engine runs strong at first, then slowly the RPMs get erratic and eventually(maybe after15-20 minutes) stalls out. During the time it's running, sometimes the white smoke starts to diminish, but then will start up again.

As the engine is sputtering, could this be a bad carb? I may have accidentally tipped the mower the wrong way.
 

ILENGINE

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  • / White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil
Tipping the wrong way will allow oil to run into the breather and get transferred over into the carb. I have seen the carb bowls get totally full of oil from this.
 

maxcalvada

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  • / White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil
I just put the breather in today and haven't tipped the mower the wrong way since then.

Any suggestions on what I can do to fix this problem?
 

gb6906

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  • / White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil
I just put the breather in today and haven't tipped the mower the wrong way since then.

Any suggestions on what I can do to fix this problem?

Sounds to me like valve stem seal is allowing oil to enter the combustion chamber
 

bertsmobile1

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  • / White Smoke Coming Out of Exhaust and Carb-Carb gets full of oil
As it starts ok me thinks your problem is still in the carb.
Firstly check he oil level very carefully you will most likely find it high.
Check the float bowl chances you will fins oil in there.
remove the breather from the carb & put some sort of catch bowl under it
Try again and see what happens.
 
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