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Repairing a Lawn Mower

Category Lawn Mowers
The grass is sorely in need of cutting and the mower is giving you grief. This is a guide about repairing a lawn mower.
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Questions

Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 0 found this helpful
April 14, 2011

I bought a Yard King Performance 42580X89 from my landlord. I went to go mow the lawn and noticed a large vibration and a loud coming from deck. The jackshaft threads are stripped for the right side of the deck. What can I do to repair/replace the jackshaft?

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By Geoff from Morganton, NC

Answers

April 15, 20110 found this helpful

Talk to your landlord. He must have known he was selling you a defective machine.

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April 15, 20110 found this helpful

If that doe'nt work visit a small engine repair shop and ask them. They will share the information you need.

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April 15, 20110 found this helpful

Thanks I'll try it out. I just need to do something and quick grass is growing up quick. Thanks again.

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April 16, 20110 found this helpful

I asked my husband about your mower problem. He says if the jackshaft is the part that holds the blade in place, you will need to replace it. The blade could fly off if the shaft is bent or broken.

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By 0 found this helpful
October 21, 2015

While mowing today with my Craftsmen 15.5 lawn tractor the engine all of a sudden wanted to over-rev big time. The only way I could stop it was to shut off the ignition or choke the carbuerator. Now when I start it, it wants to overrev from the get go. I cannot throttle it back Any advice appreciated.

Thanks.

Answers

Anonymous
November 6, 20150 found this helpful

somthing is wrong with the throtle governer. Sometimes its a mechanical type inside the crank case somtimes its a air vane type near the flywheel.

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December 15, 20150 found this helpful

It may be starving for gas. Add C-foam to the gas. It will clean the varnish in the carburetor.

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January 8, 20160 found this helpful

messed up govenor

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By 0 found this helpful
May 30, 2016

What wires do you disconnect and reconnect for a Craftsman riding lawn mower safety switches? Please help.

Answers

August 17, 20170 found this helpful

They make several different riding mowers. Do you have a model number?

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August 18, 20170 found this helpful

Usually the switch is located under the seat.

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By 0 found this helpful
April 19, 2016

When I try and move my speed lever the braking system engages. I have no clue what's going on!

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Answers

August 19, 20170 found this helpful

This is really hard to tell you what is wrong. I don't even know what make, model or year your riding mower is. You will need to supply us with more information.

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August 19, 20170 found this helpful

It could be the throttle link. Here is an article that tells how to fix:http://homeguid  ttle-102008.html

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By 0 found this helpful
July 7, 2011

While I was mowing, the front suspension came off and the mower drive belt broke. After replacing the belt when I started the engine and the blades started moving, one of the pulleys was very hot, and the engagement handle was very difficult to move.

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By Gary1 from Roseville, CA

Answers

July 7, 20110 found this helpful

After a visit to a professional, the lever may still be hard to engage, but eventually mine loosened up. Not sure about the other implications.

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July 9, 20110 found this helpful

Front suspension? If it came down? Are you talking mower deck if so, up front there are some pivot points make sure they are lined up. Make sure you pulled all the dried grass. BTW you can get a big fire when the pulley gets hot. BTDT carry a fire extinguisher in back pack

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By 0 found this helpful
November 30, 2007

I have replaced the starter drive on my Briggs & Stratton engine on my craftsman mower. To do this I had to have a special tool for the removal of the c-ring and a special tool for the replacement of the c-ring, which I accomplished successfully. How do you replace the two long bolts back through the starter. I can get everything lined up but can't seem to get the bolt close enough to get the threads started?

Jude from Atlanta

Answers

By guest (Guest Post)
December 3, 20070 found this helpful

If you want to do your own repairs on your mower I suggest you obtain a copy of GREGORY'S No.426, SMALL ENGINES SERIES 2 SERVICE AND REPAIR MANUAL. To assist in identifying, there are four rewind type starters used Briggs & Stratton have names them Vertical Pull, Horizontal Pull, Quantum Power and Side Mount.

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April 6, 20110 found this helpful

I had probs with my mower and went to you tube. Typed in mower wont start and there were plenty of videos showing you how to do repairs. got mine going by watching the videos. Hope this helps

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By 0 found this helpful
May 18, 2017

I have 21 HP Briggs and Stratton. The gas is blowing in the head and in the oil. What is causing that?

Answers

May 19, 20170 found this helpful

Briggsandstratton.com has a troubleshooting page.
https://www.bri  olving-tips.html

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By 0 found this helpful
October 27, 2016

How do I change the belt on a Yard Machine model #13A1762F026?

Answers

August 10, 20170 found this helpful

There are two excellent videos on YouTube that demonstrate how to change your belt.
https://www.you  ch?v=vRQqmQnXNgM
https://www.you  ch?v=ZUTMrv_Ibvo

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By 0 found this helpful
July 25, 2016

I have a 42" Yardman tractor with a 6 speed manual shift. It runs fine, no issues. The only problem now is that it will climb a grade at first, but the more I mow the less it moves until it stops rolling. Reverse is no problem. Is the belt too loose after using or is there an adjustment?

Answers

August 11, 20170 found this helpful

It appears you are not the only one who has an issue with their lawn tractor pulling up a grade. Here are the instruction and a diagram on what you can check on your tractor.
https://www.sho  uestions/1115878

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By 0 found this helpful
July 22, 2016

I have a Briggs 21 horsepower mower. The starter still gets hot. I put in a new battery and a new starter and it still gets hot. What's wrong with it?

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July 30, 20170 found this helpful

Does it have fresh fluids?

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By 0 found this helpful
July 6, 2016

I have a Special Edition 18 HP Yard Machine riding mower Model # MTDC3BQ695H352 and need to replace a 90 inch belt. I have a new belt and need a diagram to help with the replacement. Do know where I can find a diagram?

Answers

August 10, 20170 found this helpful

I have located the instruction for replacing your belt on the lawn mower. You can follow the directions here: http://www.mtdp  mower-drive-belt

Or it is possible to watch a YouTube video to see how they do it. https://www.you  ch?v=ZUTMrv_Ibvo

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By 0 found this helpful
May 3, 2016

How do you bypass the electric brakes on an ExMark mower? Mine lock up and I have replaced the module twice.

Answers

May 4, 20160 found this helpful

Ask the manufacturer how to do it.

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By 0 found this helpful
February 11, 2016

When I go to start my Murray 20 horse twin riding mower I hear a metal on metal clunk just before it starts. It only does it on the first start when it's cold. I can restart after it warms up and I don't hear the clunk. Does the starter have to be replaced?

Answers

September 22, 20170 found this helpful

There are several reasons why this can happen.

  • Your brake could be hitting the blade.
  • There is a problem with the carburetor.
  • The engine has a loose part inside. When it's hot the piece has expanded. When cold it makes the noise.

If this continues I would suggest taking the mower to the shop before it does some real damage to the engine.

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By 0 found this helpful
February 2, 2016

Do you have to pull the flywheel to replace the starter on a Craftsman LT 2000 mower? It has the 18hp Intek engine.
Thanks.

Answers

February 9, 20160 found this helpful

The answer is NO you dont have to pull the flywheel.Just pull the top cover take two bolts out disconnect the wire and reverse the order to install the new one :)

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By 0 found this helpful
October 25, 2015

We have a older rear engine 36" cutting Snapper riding mower. It cranks and runs good. The moment the blade is engaged the engine bogs or slows down. It doesn't shut off, just slows really down. You can mow like this, but it takes awhile. We were wondering what could be causing it to do this? Thanks.

Answers

October 26, 20150 found this helpful

It most likely needs the drive belt replaced. It maybe stretched, especially if it has mowed wet grass

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By 0 found this helpful
July 2, 2015

My Yardman 42 inch cut, 15 hp mower will not stop with key.

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July 3, 20150 found this helpful

Could be many reasons-not enough information to offer help. Contact the manufacturer or the store of purchase.

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July 16, 20130 found this helpful

My mower turns on, but holding on to the handles is like getting electricity running up my arms?

By Elena R

Answers

August 3, 20130 found this helpful

My husband said it sounds like the spark plug wire is hitting the frame somehow. Linda H.

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By 0 found this helpful
March 31, 2011

How to repair Craftsman 2, 1 pull start Pacesetter lawnmower? It is the spring and the cord that need repair.

By Patty from CA

Answers

March 31, 20110 found this helpful

Google.com put in model number and either manual or repair manual, it will take a min. or 2 searching, but you will find it. :)

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By 0 found this helpful
April 29, 2008

How do you replace the rewind spring on a B and S lawn mower?

Paul from, TN

Answers

By guest (Guest Post)
August 6, 20080 found this helpful

Paul, check out this video, should be helpful:
http://www.ehow  rter-spring.html

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By 0 found this helpful
May 26, 2015

I have a Walbro carb on an 18 hp Koehler engine. What would happen if the ground was not connected to the back of the carb?

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By 0 found this helpful
April 26, 2015

My 14.5 Craftsman won't run without my foot on the clutch/brake. How would I get this to work?

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April 9, 20150 found this helpful

I don't know what my flywheel key looks like if or if it isn't broken. Then how do I reset it back up for the timing on the flywheel? Right now, the magnets from the spark plug assembly are magnetized against the flywheel. I have a MTD 139cc 21" model #11A54MB029. Can anyone help me please? Thanks!

By Jason

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March 25, 20150 found this helpful

On a MTO lawn tractor, model 13AG601H729, where are the fuses?

By Bob from Rogers, AR

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March 10, 20150 found this helpful

My Yard King tractor runs slowly. It moves faster in reverse than forward. All belts and pulleys were changed, but even at full throttle the tractor moves slowly. How can I correct this?

By Joe S.

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March 9, 20150 found this helpful

My Yardman Yard Bug won't turn off.

By Pat

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October 29, 20140 found this helpful

I have a MTD drive lawn mower. It starts with the key, runs, and it even cuts the grass, but it will not shut off. I have to close the choke to get it to shut off. Any one have any idea why this is?

By Mindy V.

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May 22, 20140 found this helpful

I just discovered this site. Really neat.
I have a Husqvarna (Sears) rear powered walking lawn mower with Briggs and Stratton engine. I was mowing today, but the mower started making knocking or clicking noises now and then.

After mowing for 20 minutes, when restarting it by pulling the cord it would jerk the cord out of my hand like it was wanting to turn backwards. Every pull would be the same violent jerk out of my hand. Sometimes it would fire once. I let it sit for five minutes, but the same jerk. Almost like the value timing is affected. Or the distributor is firing out of order. Any ideas?

By Kirk

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May 19, 20140 found this helpful

I have a 15 hp Briggs & Stratton IH engine mower. The engine starts missing after running for 30 minutes.

By Tom from Richmond, VA

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May 17, 20140 found this helpful

When I start my mower it runs really loud. It will not idle without shutting off. How can I stop this?

By Delone

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By 0 found this helpful
May 7, 2014

After diagnoising a bad or weak coil/magneto and seemingly fixing the promlem how and why after just a couple weeks, is it that the same exact symptoms came back? There is no spark from plug but spark with inline spark tester. It seems to be pointing to having a bad or weak magneto again. Can anyone give me an answer and hopefully a fix to this issue? Thank you.

By mechanik /Dave

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By 0 found this helpful
August 14, 2013

I have a Murray 18.5 hp lawn tractor, model # 425620x92b. The safety switch under the motor (Briggs & Stratton) got mangled while I was mowing and I found it dangling. I taped the exposed wiring and replaced the safety switch. Now I can't see how it snaps in place.
Can anyone help?

By Wayne

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July 12, 20130 found this helpful

When I raise the deck to disengage blades they keep running.

By Mark

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June 16, 20120 found this helpful

I need to know how to relocate spring, torsion, deflector on mower deck?

By Robert

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November 29, 20110 found this helpful

How do I take apart a rewind pulley and spring for a Craftsman Tecumseh mower?

By Ryan

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By 0 found this helpful
August 16, 2010

I am not able to disengage the mower blades on my 42 inch cut Poulan Pro riding mower. The linkage seems to be jammed or locked up. I have tried everything, but removing the mower deck from the tractor. I need some help. Please.

By John from central FL

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By 0 found this helpful
August 8, 2008

I have a Poulan Pro self propelled mower that when it is turned on will take off without depressing the handle that is suppose to make it move. Does anyone know how to fix this?

Ricardo from Alice, TX

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ThriftyFun is one of the longest running frugal living communities on the Internet. These are archives of older discussions.

August 16, 20100 found this helpful

I have a 12 hp Power Pro riding mower. I cannot get the blade to disengage when I try to start it and it runs the battery down.

By Crazyfox65 from Warsaw, IN

Answers:

Blade Will Not Disengage on Riding Mower

You can contact the manufacturer. (05/06/2009)

By Anonymous

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