White smoke....

[KennyV]

I really cant be bothered to argue about this. I thought the whole point was to try and help those that ask the question.
All I can tell you is that I have been factory trained by Briggs, Honda, Kawasaki and spent eight years working for Husqvarna.
I joined the forum to help others I don稚 need to do it I can find other things to fill my time so I am going to close my account and leave it to the experts.
Tata.

It is unfortunate that you feel your answer is the only one worth considering... I do hope you remain with LMF but like a few others that have threatened to go away and not come back, I suspect you will also be back...
It is unfortunate if you leave because you MAY at some point help others ... BUT someone MAY eventually help You...
I havebeen around all type engines for Many decades, I am still impressed with the number of knowledgeable people willing to help others, although they don't need to do it & they also could find other things to fill their time...
Some of the solutions that others come up with are absolutely brilliant and well worth the "trouble" of reading the posts... If you think you are here only to contribute input, Your missing the greatest part of these Forums... There are many folks here that are dealing with various situations daily... Being aware of problems Should make anyone more able to deal with new problems... I Have posted a bit here, love most of the Forums and have gained Far MORE reading them than I could ever contribute back...

For the record... It's been my experience that too much fuel is Black smoke, (apply the choke, you will see it also)... oil produces white smoke, you can 'fog' an area using mineral oil fed into a small engine muffler... much like sky writing running a oil feed into a hot exhaust manifold...
I don't think Duffer72 posted the BRIGGS & STRATTON link to argue with YOU... but just to give Briggs position on 'white smoke' ... :smile:KennyV

 

[Dangeroustoys56]

Actually that same thing happened on my '85 MTD mastercut about a week ago( ran fine before that) - fired it up, started mowing and did the skeeter smoke repellent deal then quit. Checked the oil- seemed fine( no gas in it- level is fine), so fired it up again and i ran it back over to the shed.

After some investigation, i figured the carb could be at fault, went to clean it and noticed oil in it- so pulled the head and the bolts were ALL hand tight ( ive never had the head off before) - carbon build up all over in the combustion chamber, and noticed the head gasket had been leaking .

Also noticed turning the motor by hand it makes a metallic 'ting' once a revolution ( ill pull the belts and retainers off to see if that could be the issue, otherwise im thinking 'loose rod' - but i think im going to pull the motor off for a rebuild and swap another motor on it in the meantime ....

 

[Duffer72]

Kenny V- you are correct I posted that rather than get in an argument over it, I ma just trying to help those working on thier units with correct info so they don't spend time and money running in the wrong direction, If you read his posts we are saying the same thing but differently, yes acarb problem can cause white smoke if the oil is diluted with gas but, but hte end result is the oil is causing the white smoke, Not sure of his experience I my self have been working on this equipment for almost 40 yrs and have many years of that at dealer, distributer and mfg level, I have also been to service schools and was a briggs master service tech.

 

[NHL_Lawnmower]

It does that to me once in a wile, usually oil and fuel mixed. But sometimes i'll be mowing in 90's to 100 degree weather and it'd start smoking out with. I just shut it off, put it in the shaded garage and read Gold Digest for about a half hour then I put some oil in the crankcase and then it runs like a beut after that. Possibly overheating thing but IDK.

 

[reynoldston]

White smoke is not burning oil but if you want to go down that road good luck.:thumbdown:

We are talking about a 1 cylinder 15hp Kohler gas engine. What else would make white smoke other then oil?

 

[Shedmechanic]

I thought it was oil that would produce white smoke. Reading the problem here, I might not rule out a blown head gasket if it is an overhead valve engine. I just fixed a Honda motor with this very same problem, and it was a head gasket. Just my two cents.

 

[Shackelchevy77]

I have fixed that fuel in crankcase with a $5 fuel shut off on 20+ mowers in the past few years the pressure from the gravity feed tank overpowers the float and allows it to fill the carb, intake, cylinder, and seep past the rings. most wont even start cause the tank is empty and the crankcase is full.

(lets make a 4 mix thank you stihl lol runs off the crankcase just run a hose form the fuel tank to the crankcase with mixed oil) :laughing:

 

[SONOFADOCKER]

Gasoline in the oil makes the smoke . Fuel shut offs are very important now with the crap ethanol in gas -