Uploaded March 2024 | Updated September 2026, 1 week ago
The information given in this video is NOT the only reason why a Lawnmower might Cut-Out when HOT.
However, too much heat can cause a lawnmower ignition coil to fail for a number of reasons, chief among them being the insulation between the main and secondary coils. To stop electrical leaks and preserve the integrity of the coil's operation, the insulation acts as a barrier. However, the materials that make up the insulation may deteriorate when exposed to high temperatures, like those produced during extended engine operation.
Heat expansion can worsen even tiny cracks or defects in the insulation, opening up channels for electric current to flow from the primary coil to the secondary coil or outside. This leakage reduces the effectiveness of voltage transfer and may eventually cause the ignition system to fail.
Moreover, the issue is made worse by the cyclical nature of heating and cooling. Any existing insulating fractures or vulnerabilities may enlarge as the ignition coil heats up during engine running, allowing additional electric current to escape. Nevertheless, these cracks close up again when the engine is turned off and the coil cools. This contraction can bring the coil back to life temporarily, enabling it to run sporadically until it warms up again.
This cycle of expansion and contraction over time may exacerbate pre-existing damage and ultimately result in the ignition coil failing entirely. Consequently, it is essential to preserve appropriate cooling systems and guarantee the integrity of the insulation to avoid overheating-related ignition coil failures in lawnmowers.
Have a great day
Craig (Owner and Creator of The Repair Specialist Channel)
The information given in this video is NOT the only reason why a Lawnmower might Cut-Out when HOT.
However, too much heat can cause a lawnmower ignition coil to fail for a number of reasons, chief among them being the insulation between the main and secondary coils. To stop electrical leaks and preserve the integrity of the coil's operation, the insulation acts as a barrier. However, the materials that make up the insulation may deteriorate when exposed to high temperatures, like those produced during extended engine operation.
Heat expansion can worsen even tiny cracks or defects in the insulation, opening up channels for electric current to flow from the primary coil to the secondary coil or outside. This leakage reduces the effectiveness of voltage transfer and may eventually cause the ignition system to fail.
Moreover, the issue is made worse by the cyclical nature of heating and cooling. Any existing insulating fractures or vulnerabilities may enlarge as the ignition coil heats up during engine running, allowing additional electric current to escape. Nevertheless, these cracks close up again when the engine is turned off and the coil cools. This contraction can bring the coil back to life temporarily, enabling it to run sporadically until it warms up again.
This cycle of expansion and contraction over time may exacerbate pre-existing damage and ultimately result in the ignition coil failing entirely. Consequently, it is essential to preserve appropriate cooling systems and guarantee the integrity of the insulation to avoid overheating-related ignition coil failures in lawnmowers.
Have a great day
Craig (Owner and Creator of The Repair Specialist Channel)
