tes before this happens.
Garden
Experienced gardeners share their insights in answering this question :
Hi ****,It could be the coil that is having issues, but it might also be the condenser / points as well. When the mower is good and hot and the engine dies, check the coil by using a multimeter (set for resistance) lead on the spark plug boot, and the other to the head of the engine. You should get a resistance reading. If you don’t get anything, double check your probes. If still no reading, then the coil has a thermal defect which causes the windings to open up at higher temperatures. If you do have a resistance, then start looking at the points and condenser. Also, after the engine cools down to ambient temperature, check the resistance again. The exact number will change somewhat, but I wouldn’t think it should change more than 10% or so.Replace your plug too. It may have a hair crack in the electrode causing a no spark. If you are not getting a spark from boot to the head, then the plug obviously isn’t the issue.Consider picking up an ignition tester for small engines. It will show you the spark strength / color using an adjustable gap. May help clue you in if the coil is weak to begin with, even if fault lies somewhere else.
How to Identify and Fix Common Gardening Problems ?
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If no spark appears, check for broken wires, shorts, grounds or a defective stop switch. Once you have confirmed that the stop switch is working, reconnect the spark plug lead.
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.
Loss of spark is caused by anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. This includes worn, fouled or damaged spark plugs, bad plug wires or a cracked distributor cap.
If the ignition coil does not have spark, it`s time to check its wires. Use a test light to check the continuity on the signal wire and power wire on the ignition coil. If both wires are functional but the coil fails to produce spark, the ignition coil or the ignition control module is bad.
What kills ignition coils is location; being mounted in one of the hottest, most vibration prone and dirtiest parts of the engine. Modern ignition coils are typically located between two camshafts on the valve cover and exposed to dirt and oil.
Check to see if the switch and terminals are free from rust and replace any damaged or broken spark plugs wires as necessary. Alternatively, it could be a bad ignition module. A simple way of testing the ignition module is to leave the car idling for 30 minutes and then tap the ignition module with a screwdriver.
Failing spark plugs can cause the car engine to misfire and thus affect its performance. A single spark plug that fails to ignite the fuel-air mixture can cause a halt in the running of the engine. It can result in incomplete combustion and damage to the catalytic converter of the car.
Many factors can cause a spark plug to fail; from incorrect heat ranges to improper gapping, to chemical contamination. Yet 90% of spark plug damage claims are due to improper torque. Many factors can cause a spark plug to fail; from incorrect heat ranges to improper gapping, to chemical contamination.
Spark plugs may become less effective at doing their job due to time, wear, or other electrical/ignition system issues. They may become “fouled” over time due to combustion, contamination, or overheating, losing their ability to spark the air-fuel mixture and dissipate heat away from the combustion chamber.
Spark plugs may become less effective at doing their job due to time, wear, or other electrical/ignition system issues. They may become “fouled” over time due to combustion, contamination, or overheating, losing their ability to spark the air-fuel mixture and dissipate heat away from the combustion chamber.
Check to see if the switch and terminals are free from rust and replace any damaged or broken spark plugs wires as necessary. Alternatively, it could be a bad ignition module. A simple way of testing the ignition module is to leave the car idling for 30 minutes and then tap the ignition module with a screwdriver.
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Will not start turns over has spark the engine was running and killed and will not restart
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I have taken the lug nuts off back tire of my mower and it won’t move to slip off and it is in the air off ground.
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I have had a poulan pro 550 series push mower for almost 1 year at the end of the season last year the mower would start briefly and then stop. i have cleaned out the air filter and that did not help.the mower started, i made one revolution around the yard 3/4th of the way the mower quit. I then primed the mower it started then quit and now it will not start at all. Does anyone have any suggestions of what to do. Thanks
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