Garden

Model number 12h802-1752-b1
Experienced gardeners share their insights in answering this question :
Could be a bad coil. I had a Cub Cadet that would shut off when it warmed up. After it cooled, it would start up just fine. I ordered a replacement coil from a local dealer and replaced it. It works fine now. Unless you are comfortable with mechanical repairs, you might want to take this to a qualified small engine repair shop.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

A Dirty Carburetor Can Cause a Lawnmower To Start Then Die

By far, the most common issue that causes a stalled motor is a dirty carburetor. The carburetor on your engine is the thing that draws in air and mixes it with the fuel. Contrary to what the movies might make you think, gasoline itself is not very flammable.

Condensation inside the gas tank is one culprit, but moisture can also enter the system through a loose or ill fitting gas cap. The best solution is to drain the mower`s gas tank and refill it with fresh gasoline. A clogged fuel filter can also cause a mower engine to die.
As the fuel level drops, a vacuum begins to form in the fuel tank because air can get in to fill the space the consumed fuel occupied. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die.
If your lawn mower starts, runs briefly, then dies these are the four most common reasons that`s happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.
Other things that could cause this issue are bad fuel, weak/colapsed/kinked fuel line, faulty spark plug, faulty ignition/coil, oil over full, clogged air filter, plugged/dirty carburetor, worn engine parts internal rings/valves/etc.
The most common cause of a mower that runs for thirty minutes and then dies is a faulty armature. A faulty gas cap is the second most likely cause.
A full gas tank and oil reservoir are the essential first steps when checking why the lawn mower won`t stay running, but the problem could also be a dirty filter, clogged carburetor, improper fuel mixture, or a dirty spark plug.
Use carburetor cleaner to remove deposits, clogs & debris

Luckily, you can take care of many of these problems quickly and easily; often without even removing the carburetor from the engine.

The carburetor might be clogged. A clogged carburetor is most commonly caused by leaving fuel in the engine for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to stall.
If your Husqvarna mower starts and then shuts off after 5 to 10 minutes or so, the problem is likely fuel related. Husqvarna says this may be due to a clogged fuel filter, restriction in the pick up or an improperly vented fuel cap. A clogged fuel filter restricts the flow of fuel to the tractor`s carburetor.
Your lawnmower may stop running when hot due to an overheated engine, air leaks, a clogged fuel system, or the carburetor not getting enough gas. It is also possible that the engine is not cooling as it runs because of a dirty air filter. Finally, worn-out pistons may also be the problem.
An easy solution is to remove the mower casing and clean it of dirt and debris. Low Oil Levels can also cause overheating. With not enough oil circulating, internal friction occurs preventing heat from not being reduced. Be sure to check your oil level each time before you start your machine, and add oil if needed.
Being Overworked. One of the most common reasons that a lawn mower might stall while it is cutting grass is that it is being overworked. This is a mechanism that is intentionally incorporated into the mower to prevent the motor from being blown.
Clogged or Dirty Air Filters

Dirty air filters are one of the most common reasons lawn mowers sputter. Dirt can be present in the apertures that lead from the carburetor and the fuel filter and interrupt the flow of fuel supply to the combustion chamber. You want to be sure to clean or replace dirty air filters.

Use Carburetor Cleaner

Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleanerOpens a new window, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.

Use Carburetor Cleaner

Fortunately, you can generally do this without even taking the carburetor out of the engine. Start by purchasing some commercial lawnmower carburetor cleanerOpens a new window, which comes in a simple spray can and will make it easy to clean the inside and outside of the carb.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Engine quits running at full throttle and hot
ANSWER : Sounds like coil but check oil

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I am another owner of the 24 hp. briggs and stratten ELS that has blew a rod out the side. How can I get help replacing this motor that has been such a terrible problem
ANSWER :

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The oil pressure light comes on when i idle down the engine and one time it shut down and would not start back i let it sit for several hours and it started back and is running fine but the oil light still comes on when i idle it down
ANSWER : So, tell me have you checked your oil level? that would be the first thing to do then check your oil pressure switch and /connections

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Engine running rich?
ANSWER : Worn float needle or obstructed airflow (plugged foam filter)

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Honda g100 stationary engine starts and runs well on full choke but will not run without choke.
ANSWER : Same problem here. I solved it by removing carburetor, removing float and valve seat and soaking in carb cleaner overnite. Blew out all the orifices with air and reasembled. Runs as good as ever!Always turn gas off and run until empty, gas evaporates and leaves residue in bowl and valve.

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25 hp kolhler won’t stay running
ANSWER : Check fuel filter, it may be clogged, if so replace

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I’m having problems with my 223L when I cen get it started I have to run it with full choke once you open the choke it shuts down any help Please
ANSWER : Sounds like its getting fuel starved, look at fuel system and carb settings, may need a carb service.

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Engineer starts, and stop – Mtd 22" Yard Machine Push Mower
ANSWER : Clean fuel system
lines
tank
carburetor main jet, float bowl
check cable/linkage adjustments

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