Model #917388571 CRAFTSMAN Walk Behind Lawnmower, Gas

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Question and Answers

Q:

How do I speed up the idle on my Craftsman lawn mower

A:

I understand how important it is to have your equipment working properly, especially when the grass needs to be cut. While you are waiting for your expert answer, I have found a link that will provide some information and instruction for the idle speed. I would suggest that you look at the parts diagram on www.searspartsdirect.com to see if there is a missing part. I hope that this will help you.

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aashe -
May 24, 2011
A:

Thank you for your question.

I am sorry you are having a problem with the mower. If the mover is not coming up to speed, I recommend checking the linkage first. The first image below shows all of the linkage. Make sure it all moves freely. If it is fine and the spring is connected click on the second image. This image shows how to adjust the engine speed. The rpms should not me set higher than 3250.

Please let me know if you need further assistance.

Here is a link to order any parts you need. Sears Parts Direct .

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations: Sears Home Services .

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
May 26, 2011
A:

exactly the area that i am checking. however, the operator presence control bar does not appear to be connected to the arm bar under the tank. do you have a diagram of the cable from the operator presence control bar(on the mower handle) down to the arm bar?

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andy -
August 09, 2011
A:

I have posted an image below that shows how the cable is connected to most of our mowers. If this image does not match your mower please reply below with a model number and I will see what I can do.

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Mark T -
Sears Technician
August 10, 2011
A:

Mark, I know this is a late reply to the original post.. but I have the same problem with idle speed. The model number is 917.388300.

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Don -
August 15, 2012
A:

Don,

I will be happy to assist you. I posted an image below that shows how the link should be connected. The image also shows how to adjust the engine speed. Click on the image to enlarge it. To adjust the speed on this model you just bend the tab the governor spring it attached to. Be sure to use a tachometer to verify the engine speed. It should be set to around 3200 rpm.
Please let me know if you need further assistance.
Mark T.

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Mark T -
Sears Technician
August 19, 2012
A:

Hi Mark - exact same problem, different model: 917385320. Advice?

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Chris -
August 26, 2012
A:

Chris,

I posted an image below that shows your model without the air filter. To speed the engine up you have to bend the tab that the spring is attached too. Bend the tab toward the front of the engine to speed it up. I recommend using a tachometer when you adjust the engine speed.

I hope this is helpful. Please let me know if you need further assistance.

Thank you for using Manage my life. Mark

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Mark T -
Sears Technician
August 27, 2012
A:

Actually the spring itself was gone. :) I replaced it. Thanks Mark!

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Chris -
August 30, 2012
A:

Chris,

I am glad to hear you have the mower up and running. Please let me know if you have any other problems with the mower.

Thank you for using Manage My Life! Mark T.

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Mark T -
Sears Technician
September 01, 2012
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Q:

blade adapter removal for replacement

A:

Please allow an expert to respond within 24-48 hours. If you would like assistance from a professional you may visit your local Sears repair shop. I hope you issue gets resolved!

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Jackie S -
April 17, 2011
A:

Thank you for your question.

To remove the blade adapter the gas should be drained or ran out of the tank so the lawnmower can be placed on the side. Lay the mower so the carburetor and air cleaner are up.

Block the blade with a piece of wood and remove the blade bolt and blade. The blade adapter should pull off the engine shaft unless it is rusted to the engine shaft.

Try spraying rust buster between the engine shaft and the blade adapter and tapping the blade adapter with a hammer to help the rust buster penetrate. Tap on the back side of the blade adapter to tap it off the engine shaft.

If this procedure doesn�t work, put the blade bolt back into the engine shaft and tighten it until the head is about � inch from the blade adapter. Use a gear puller to pull the blade adapter off the shaft.

With the blade adapter off the debris shield will slide off the engine shaft.

Please let me know if you need further assistance with the repair of the mower.

Here is a link to order any parts you need. Sears Parts Direct .

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations: Sears Home Services .

Thank you for using Manage my life.

Mark T.

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Mark T -
Sears Technician
April 18, 2011
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Q:

Why won't my lawnmower stay running?

A:

It is unfortunate when you can no longer use your lawn mower, they are very expensive tools. I researched your question and found someone asked a question similar to yours. Here is what was posted by an expert, I have provided the link below. I hope this helps!

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Jacqueline S -
July 25, 2010
A:

thanks I hope since they have a model number I get a more positive answer because that one didn't sound good.

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ihtak -
July 25, 2010
A:

This is usually caused by old gas and/or debris in the carburator. I recommend taking the bowl off of the carburator and having a look.

Drain the gas from the engine. Then remove the air filter assembly. There will be a bolt on the bottom of the carb holding the bowl on. Remove that bolt and the the bowl will come off. More than likely you will find some debris in that bowl. I recommend using carburator/choke cleaner (any brand will suffice) to clean the bowl out. While you have the bowl off, use the cleaner to spray up into the jets of the carb. *NOTE: Eye protection is a good idea. The carb cleaner tends to splash back when you spray it and you don't want to get that in your eyes*.

Once you have everything cleaned out, place the bowl back on the carb paying attention to the rubber O-ring. Put some gas back in the engine and test it out.

If the mower sat unused for a few months or more, it's very possible any old gas that was left in the engine has now turned to varnish in the carb jets and the carb will need to be replaced.

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XX Wade_ -
Sears Technician
July 27, 2010
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