m a car, it starts and runs for as long as needed.Does not shut off when it gets hotter, at all. But once I shut it off, I will have to repeat the jumping process, again. Can it be as simple as the spark plug? It is about 6 years old

Experienced gardeners share their insights in answering this question :
Can you check your battery voltage?
Is the car voltage higher than the mower voltage?
If you can jump it, it would seem that it should start with any equivalent battery.

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 :

There are several reasons a Craftsman lawnmower may turn over but not start, with the most common ones including the following: Lack of fuel. Dirty air filters. Electrical issues in the ignition system or the starter motor.
Your lawn mower turning over but not starting due to several reasons, such as a faulty or disconnected plug, a disconnected spark plug wire, a clogged air filter, or a contaminated fuel tank. A faulty carburetor, a dirty cutting deck, or a dysfunctional flywheel brake can also cause this.
Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
A clogged carburetor is most commonly caused by leaving fuel in the lawn mower 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.
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.

The most likely cause of a no-start mower after running out of gas is dirt in the carburetor, but other possible causes include: Air locked gas system. Faulty carburetor. Contaminated gas.
Touch the metal shaft of a screwdriver to both of the large terminals at the same time. If the engine turns over and starts, the solenoid is bad and should be replaced. If the starter motor does not run, the motor itself is probably defective.
There may be old or bad fuel in the carburetor float bowl. 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 make the engine hard to start. If the carburetor is clogged, try cleaning it with carburetor cleaner.
If your Briggs & Stratton engine has a spark but won`t run, then it is most likely a problem with the gas or air intake in the engine. The spark on the spark plug ignites the gas in the piston, but if the air filter is clogged or the gas can`t flow, then the engine won`t start.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

What Gap for spark plug on 3.5 hp engine? – Briggs & Stratton Briggs Stratton Lawnmower Lawn Mower Short Block
ANSWER : .030 or 76 MM

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How do I remove and clean air filter? – Briggs & Stratton Lawn-Boy 10640 20-Inch 6.5 HP Gas Powered Lawn Mower
ANSWER : There should be a square of plastic on the side of the engine which is opposite of the muffler. It has a small hex head with a slot cut in it. Remove this plastic cover and the air cleaner should be inside of it.

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17hp b/s intek OHV after 30 min mowing starts running rough
ANSWER : If gas is in the oil the needle and seat in the carb are bad or some thing in it. the gas will go in to the crank case and load the cylinder with gas. you can take the carb apart to see if something is in the seat. or replace the carb

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Craftsman mower with 6.75 B&S motor will start and run fine for about 3-4 minutes and then slowly chokes out. I cleaned the air filter and need to know what to check next. Thanks.
ANSWER : Hi there

though you have cleaned the filter it could still be not getting enough air you can start the machine without it and see if stays running do not do work with it just see if it runs sitting there if it does simple fix new filter however if it does the same it is a lack of fuel either fuel filter if has one if not it will be in the carburater these get gumed up by old gas in which in that case find a small engine repair shop to take care of this issue

thank you for the question hope i helped with the issue good luck and have a great day

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I need the spark plug gap for a MTD mower model # 11A038A729. It has a Briggs 12M902 0451 E1. Thanks.
ANSWER : The proper gap is ..030″ Here is the Briggs application chart for L-Head engines like yours.

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Engine will not turn over ehen hot – Craftsman 42" Briggs & Stratton 17.5 hp Gas Powered Riding Lawn
ANSWER : Your problem could be the starter or battery. Because the engine will not turn over when hot, I suspect the starter.

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Briggs and stratton 130212 3198 01
ANSWER : Gabe:

The gap will be 0.035″ to 0.040″ The wider the gap, the hotter the spark. If your magneto is good and strong, forty thousandths of an inch will work.

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I have a dlt 3000 18.5 hp thats been sitting for two years getting gas to carb but won’t start. took off carb, cleaned everything still nothing. If I pour gas in carb starts right up
ANSWER : You didn’t clean the carb good enough try again. You missed some small orifice somewhere. Good Luck!

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