Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

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Craftsman 17.5 hp 42 in. Deck Lawn Tractor

**Please Read *** Correction - I am not having teeth problems - not sure how that got in there.
I have a craftsman LT1000. The tractor was used 2 times since last summer. I have a Craftsman LT1000 - Tractor has been great no problems for last 5-6 years however; this year It suddenly started sputering and spitting and running uneven while under load. I replaced air filter, fuel filter, spark plug - which seemed to fix the problem for about 5 minutes. Until it starting running poorly again. I checked the spark plug (not fouled) and i checked spark plug is getting blue spark. However; Now she will not start. Original Fuel Filter didn't seem blocked (unable to get a replacement - discontinued according to SEARS Hardware - but same exact stock # as brand new mower :(!) Replaced with Briggs and Stratton Standard In Line Filter. (States fit's all 1/4" and 5/16" mowers up to 80HP. Now mower will not start. tried using original fuel filter however; same result will not start. ( I am stumped on this one! Help Please I'm not a mechanic so I would appreciate some help. I also replaced the original battery with a new Everstart. Not sure if these mowers have magnetos. Anyone have any experiences with regards to fuel filters I can provide model number if needed.
-really appreciated!

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  • tomtopshelf May 27, 2009

    No, I have not. I am not a mechanic. Is this difficult? Any ideas on how much a carb kit would cost for it? and recco's on where to buy one?

    Advice is Much Appreciated

  • tomtopshelf May 28, 2009

    Ok I have Fire - blue spark coming from the plug

    Will look into cleaning the carbs - Many Thanks

  • bart braun May 11, 2010

    have you tried cleaning the carb, it may be fouled up with tarnish and is not working properly. or it may be that you need a carb kit.



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This sounds too easy of a solution but I had a like ptroblem with my Craftsman. I loosed the gas cap a bit and the rough running and stalling stopped. he vent on the gas cap that contains a turn over interrupt valve was plugged causing the gas not to flow. I took the cap apart and cleaned out the vent hole though cleaning the holewith a paper clip would have worked as well. fixed my problem. I think my dirty hands of deris deposited the matera in the vent hole when filling with gas.

Posted on Nov 28, 2009

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Runs then stops after lawn is almost done,i wait 5 minutes and it will run again then stop,cahge plug filter new gas it still happens,could it be the muffler?

Posted on Jul 16, 2011

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How do I start cleaning my carburetor, and what is the device call that get the fuel to the carburetor?

Posted on Jun 04, 2009

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Ethonal ive read several articles on this new gas it is causing all kinds of trouble with small engines and outboards/ if you have fire it is not the magneto

Posted on May 27, 2009

  • Roy Cagle
    Roy Cagle Jun 12, 2011

    You have forgotten one very important bit of maintenance on this machine. The overhead valves have to be periodically adjusted. They work in unison with the built-in compression release to aid in starting. Poor running or very hard starting problems can be resolved by adjusting the intake and exhaust valves just behind the little metal cover stamped OHV. Briggs has the valve clearances for all their engines in a page in their site.


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Hope this Helps.

Good Luck



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