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I do not know the model number of my lawn tractor just that it is a Poulan riding lawn mower and that it has a 25 hp Briggs and Stratton engine. (I do not think they made too many of this model). The engine is smoking terribly. Can anyone tell me if there is a chance of purchasing a rebuilt motor of the same size and how much they might run?

We do not have enough money to purchase a new motor - so we will be limited to what we can do.

Look around for a riding mower that has other problems. And use the engine on yours.

:welcome:

OK lets take it from the top.

White smoke or black smoke ?
Been doing it for a long while or just suddenly happened ?
Have you checked the oil , was it overfull ?
Does the mower seem low on power ?
Does it run bad or just blow smoke ?
Is it hard to start ?
Does it seem to spin faster faster on the starter motor than usual ?
When you turn it off after running for 10 minutes or so, remove the oil filler.
If it blows smoke signals then most likely just a head gasket or 2 . Easy fix about $ 50.

How good are you around motors ?
What tools do you have ?
Sticky beak arn't I

Carscw said:

Look around for a riding mower that has other problems. And use the engine on yours.

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That is a good suggestion around here you can find a mower with bad transmission or deck. They usually go for about 200- 300 dollars.

NorthBama said:

That is a good suggestion around here you can find a mower with bad transmission or deck. They usually go for about 200- 300 dollars.

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That's what I do. Then you can even sell some of the parts. I buy cheap mowers every time I see one. Take all the good parts and build good mowers and sell them. Once a year I haul the leftovers to the scrap yard. Last time I had over 3000 pounds.

Carscw said:

That's what I do. Then you can even sell some of the parts. I buy cheap mowers every time I see one. Take all the good parts and build good mowers and sell them. Once a year I haul the leftovers to the scrap yard. Last time I had over 3000 pounds.

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Yes I have a mower bone yard also

To properly rebuild a engine with machine work wouldn't be much cheaper then replacing it with a new one. Yes to find a used engine or find out what is wrong with your old engine would be your cheaper rout. bertsmobile 1 also has very good points in his post.

Yes,
Can not count the number of times some one has come in asking about a replacement engine when all they had was a hydraulic lock , loose tappets or blown head gasket.
Worst part is all too often one of the glass fronts had told them the engine was blown & quoted ( guestimated ) a repair running into thousands usually without even looking at the mower.

bertsmobile1 said:

Yes,
Can not count the number of times some one has come in asking about a replacement engine when all they had was a hydraulic lock , loose tappets or blown head gasket.
Worst part is all too often one of the glass fronts had told them the engine was blown & quoted ( guestimated ) a repair running into thousands usually without even looking at the mower.

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Yes Yes so right. Just replaced a starter for an elderly gentleman who was told by a local shop the he need a new engine his was locked up and would not turn. Starter gear hung in flywheel.:laughing: