Model #917275400 CRAFTSMAN Lawn, Tractor

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Question and Answers

Q:

Mower shuts off 917.275400

A:

Thanks for the inquiry and for being a valued member.

I am sorry to hear of the issue you're having with the tractor shutting off intermittently. I know how frustrating that is.

There are two common occurrences for this type of issue to happen. It could be a non-venting fuel cap, or it could be an issue with spark.

Next time the tractor bogs down or dies, unthread the fuel cap and see if it smoothes out or starts back up. If so, a fuel cap replacement will be needed. The fuel caps need to vent, otherwise negative pressure builds in the tank and restricts fuel flow. After time, the pressure releases and it can be restarted. 

The other factor would be with spark. Next time it dies, take out the spark plug, reattach it to the boot, and ground it to the metal cylinder. Have someone sit on the seat and turn the key on while you check for spark. If you do not have spark, the spark module may need to be serviced or replaced. 

Another factor would be debris in the carburetor, as the symptom is not as common, it can occur. Debris gets sucked into the jet which kills the engine, and once it dies the debris falls out of the jet which allows the engine to be restarted. 

I hope these suggestions help, and thanks for using SearsPartsDirect.com. We appreciate your business. 

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Jeff Wallace Sr -
Sears Technician
June 23, 2015
Q:

Tractor runs for 20-30 minutes then dies! 917275400 Craftsman Lawn tractor

A:

Thank You for choosing Sears PartsDirect.com. It is unfortunate to hear that you are having issues with your mower and do understand your frustration. Glad to help out. Im looking at your model number 917275400 and generally that will be a carburetor issue. There would be debris or old gas in the carb causing that to happen. If the solenoid is working you should feel or hear it click when you turn the key. Have some one turn the key on and of a few times, as you feel and listen to the solenoid. When energized the coil inside should pull down a pin to allow the fuel to go up the main jet. If you do not feel or here the solenoid, you need to check for 12 volts d.c. Remove the wire from the solenoid and test from that wire to the engine block. You should have at least 12 volts. If the voltage is present, the solenoid needs to be replaced.  

Regardless if the solenoid is working or not the carburetor float bowl should be full of fuel. If the float bowl were empty, the problem would be a fuel cap vent, fuel filter, fuel line, or the needle and seat in the carburetor. To check the fuel going to the carburetor you can remove the solenoid and the float bowl. The fuel should run out when the float is down and stop when the float is lifted.

If the above all check out the carburetor need to be rebuilt or replaced. Here is a video that will help with testing as well. The parts list shows 2 different carbs for this model a Nikki and Walbro. 
694393 for walbro carb and 699915 for Nikki carb. 
Be careful fuel is flammable and if you produce a spark, it could ignite and cause a fire. I hope this information helps with your troubleshooting. I have included a link to our PartsDirect page where you can purchase the part you need to complete your repair. Just click the blue link above to be taken to the page. If you have further questions please resubmit your question for further information.
 
Thank you for choosing Sears PartsDirect.com.

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Sherman_G_Wallace -
Sears Technician
July 11, 2014
Q:

My 18hp Briggs runs for 1/2 hr then dies. It will start back up in 5, then dies. It has new filters, plug, gas?

A:

I suspect the problem is the gas cap on your mower.

The gas cap has a vent in it that lets air into the tank as the fuel is burned. If the gas cap doesn't vent the gas tank goes into a vacuum and stops the fuel flow to the carburetor. 20-30 minutes is about how long it takes for the gas tank to stop flowing gas to the carburetor.

You can test this by loosening the gas cap then retightening every 4-5 minutes, or running the tractor without a gas cap for 30-40 minutes.

Don't run the mower without a cap for longer than 30-40 minutes. If you get debris in the gas tank, it will stop up the carburetor.

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Jimmy K -
Sears Technician
July 14, 2009
A:

I have exactly the same problem and its not the gas cap, I tried that. As it starts to die if I move the throttle to idle it stays running but I cannot move the throttle to the normal running position without it wanting to die again. I have changed the air filter, fuel filter, oil filter and oil and the spark plug to no avail. If I do let it die it starts right back up again but again only in the idle position. I have been told there is a solenoid on the carb that might be causing this but they were not sure. Don't even know what that solenoid does. Any suggestions? It runs great for the fist 20-30 minutes no problem. I need help!

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Pete -
July 10, 2014
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