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Why does my Tiller only run with choke on?

My Tiller is only running with the choke on. Still hard time to get started. But once running, it
only runs with choke. If I open the choke it will shut down immediately. That is with throttle
full open. Do not see any fuel adjustment on Carb. Tiller is only five years old and is used
maybe at most 4 times a year.
Model Number of Tiller is 917 296010
Carb number supposely is 126302-0416-E1

This is what I have done:
1) I have replaced the fuel with fresh fuel.
2) Fuel bowl does fill up with fuel
3) There is spark. Bright blue spark.
4) Have take off nut to bowl and clean out the fuel holes in the nut.
5) Sprayed carb cleaner into jets in Carb and have notice the spray goes through the jet.
6) Fuel float does work. opening and shutting off fuel to bowl.
7) I have ran the Tiller w/choke on for one hour to warm Tiller up.

I did to know if I need new Carb or could it be the, by chance, simple thing, the nut for the fuel needs replaced?

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2 Answers from these members:
Manage My Life
The garden may have to wait while the equipment takes priority. While you wait for the expert to review your model, you can check out a similar question from a previous expert post if you like. I attached the link below.
by Manage My Life
April 2nd, 2011
Answered in 13 minutes
0 votes
Mark T
Thank you for your question.

I am sorry you are having a problem with the tiller. Usually when the engine will not run without the choke, it is because of a dirty carburetor. There is a possibility one of the gaskets are causing this problem. To rule out one of the gaskets start the engine and spray around the gaskets with carburetor cleaner. You need to be careful doing this because the carb cleaner is flammable. If there is a leak, the engine will change pitch when you spray the area with the leak. If you do not find any air leaks, the carburetor is most likely the problem. I recommend cleaning all the passages with carb cleaner and a bread tie wire. Make sure to pay close attention to the holes in the bowl nut. Then reassemble and check the operation. If the engine still will not run without the choke you have to replace the carburetor. If you need to order the carburetor you can do so from our parts website:

Sears Parts Direct


Please let me know if you need further assistance.

I have found a video that should help with cleaning the carburetor. Please click


to watch the video.

If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services


Thank you for using Manage my life.

Mark T.
by Mark T
April 4th, 2011
0 votes
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