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Sears Lawn Tractor - Smoking Badly

I have a Sears Lawn Tractor with B&S engine (31c707 type 0230-e1) that's smoking badly. I believe the fuel is leaking into the oil causing the problem. I've read that the fuel solenoid could be the problem. Can this be repaired or does it need to be replaced? Thanks

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No, it can not be repaired. It need to be replaced.

Posted on Apr 24, 2010


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I'm looking for a free download for a B&S repair manual for 17.5 ohv model 31c707 0230 e1 can get parts manuals all day long but ya have to buy the sevice information book which covers many models and engines

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I got a unit to repair witch was striped by someone els.There is a plate with part no 276897 that must go on the intake.Dous it fit to the carburato or to the cylinder head.

it will fit between the carby and the head
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Oct 01, 2015 | BRIGGS_AND_STRATTON...

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Did you ever change the oil? If is still under warranty I would call Sears. It could be a factory mistake. If you are talking about a riding mower it could need a valve adjustment. This is a common problem on Briggs. Need more info to tell you for sure

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My Sears tractor has white smoke pouring out of it right after starting. It is fairly new,, some 217 hours on it.

Answer to your question is this,if this keeps up smoking,i would check the carburetor fuel filter,for signs of gas collected up in the filter. If there gas you need to adjust the carburetor,by adjusting the fuel mixture. The carburetor uses both fuel and air mixture. To much fuel(Rich) floods the carburetor,too little fuel(Lean),there is more air than fuel. You will have adjust the carburetor's needle valve to receive the correct balance between the two. To do this check the carburetor for a slotted screw,take a screwdriver. Turn the screw in to get a lean mixture,turn screw out to get a rich mixture. After making your adjustment,start the tractor,if not already running. Watch to see if it is still smoking,if it is, adjust the needle valve screw in more until the smoking stops,also keep watch on the filter for gas,in the filter assembly. This is not where your gas needs to be. I need to inform you to also,to be sure that the air filter is cleaned up(No Gas Accumulation in the filter) -This is a must do to possibly,keep from having a (FIRE). When making fuel adjustments,i would check the spark plug(s) for carbon deposit building up,that would cause the motor not to start,or run smoothly. Anyway,be SAFE,your dealing with GAS. Sincerely, Brad Locke 12/03/15

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1 Answer

I replaced the cutting belt (obtained at sears) on my 19.5 HP Craftsman tractor and the belt is smoking. What normally causes the smoking to take place?

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1 Answer

The lawn tractor is smoking. what cAN I DO?

Try adding a little marvel mystery oil and change the oil.Thanks for asking and I hope this helps out.Please leave me 4 thumbs up.

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My lawn tractor is smoking and then the engine dies. what should I look at?

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