Hi guys I just wanted to Introduce to you my other Channel "Things to Know" - which i'm just getting started. It's a go-to channel for insightful worldly explanations, handy tips, and expert advice on everyday things and repairs of domestic items. Here is the link: ru-vid.com/show-UCO8P9x5kUZ44Fb11vanLFsg
Mr. Craig Kirkman, this the best explanation with great graphics that I have seen on this topic. This video should be in HS to help future mechanics or students in general about current flow . 👍 # 73 Stay safe, Joe Z
You explained this so well - with all the colors and symbols that anyone can follow what you are explaining ! I am now hooked to your channel ! Thank you very much !
Sir if someone can't troubleshoot an ignition system after watching this video then there is no hope for them. This was a very interesting explanation.
Brilliant video! Everything explained in real depth with clear photography and truly wonderful animated diagrams. I understand so much more than I did before (including how copper wire conducts electricity at the atomic level!). Thank you so much for this video. I now feel confident enough to work on my ride-on mower’s electrical system.
Hiya mate a friend turned me on to your channel could you tell me how to change the seals on a Chinese chainsaw it starts but won’t idle I would really appreciate this mate ow I’m also a subscriber big thumbs up
Great video your commentary is most informative and the accompanying illustrations and video filming are outstanding your tuition skills are priceless.Well done brother.
The single ignition magnet on my flywheel of old 12HP Briggs engine is North pole only, facing outward. Each end of it reacts with a North pole magnet as repulsion. The Briggs Magnetron just shorts to ground for the primary, due to the solid state module trigger. There is no AC to shut off primary. Very old engines did have North + South 2 magnets for AC for Primary.shut down.
Thanks for sharing that interesting observation about the magnet on your old 12HP Briggs engine flywheel! It sounds like you have a good understanding of the ignition system's magnet and how it interacts with the Magnetron module. You're correct that older engines often used a different ignition setup with both North and South magnets on the flywheel to generate alternating current (AC) for primary shutdown. It's fascinating to see how engine designs have evolved over the years. If you have any more insights or questions about small engines or ignition systems, feel free to share them. It's always great to learn and exchange knowledge within the community. Thanks for contributing to the discussion! Craig
Good video, very well explained! Can you explain how the ignition system adjusts the ignition advancing/retarding on these simple systems, probably no adjustment on a lawnmower engine but ignition looks the same on other more high hp engines which adjust ignition curve with rpm
A message from 2008 of shutdown web forum, said that a bench test with Briggs Magnetron coil, with magnetic field impressed on spark plug cable of 20 turns electromagnet with steel nail, from 12v + 10amps + resistance, caused the high volts to increase from 10,12,15KV to just under 40KV! This was on an ignition coil tester box with internal adjustable gap, and ranges high voltage level. The ouput sent power to the Magnetron primary to start from push button. There was an inline series electromagnet on 12 volts side, with low volts side to a test resistor about 1.2 ohms. (Stress on ignition coill probably changed voltage) I thought only a wider spark gap did that.
Wow, that's some fascinating experimentation with the Briggs Magnetron coil! You're right; typically, a wider spark gap is one way to increase the voltage in an ignition system. It's always intriguing to see how tinkering and testing can lead to unexpected results. Your message from 2008 highlights the innovative spirit of those who love to explore and understand the inner workings of engines and ignition systems. Thanks for sharing this intriguing experiment with us! It's a reminder of the endless possibilities when it comes to understanding and optimizing engine performance. Craig
i will be doing a 3 step bench test, using Briggs Magnetron for test with magnetic field on plug cable, In line inductor with diodes, and pulse test of relay/ switch with the tab shutdown terminal neg -130volts pulse, to generate Back EMF high voltage from the L coil. I need to validate the earlier tests done in 2008. He had used ignition coil tester to see results from using S1R9A9M9 triple coils assembly with L coil 1.5Mh inductor and spark gap. The higher voltage above 23kv is called plasma path, that is used to allow extra current THROUGH zero ohms spark plug. Then see his 2008 Briggs engine idling running on water in carb. 2 RU-vid videos S1R9A9M9 . Combustion chamber 10 amps electrolysis for Hydrogen and Water Vapor Pressure) The alternator was used , after battery disconnected from starting, because of 12 magnets providing free power under flywheel.
In general, the Magnetron - is called an autotransformer with 3 terminals. The Briggs twin cyl engine can use either 2 coils or 1 coil. I am using the dual cable type single coil, as used on 2 cyl engine, for my one cyl Briggs engine. This particular type is an actual "standard type" transformer with 4 terminals. - NOT an autotransformer. The secondary side provides pos and neg high volts to each plug on twin cyl, at the same time. I am using the Positive cable to spark plug with neg cable to ground. The FULL POTENTIAL: high volts is realized if wanting positive high volts. The other 2 methods of obtaining pos high volts requires a loss of volts due to the primary as not being part of secondary. The regular autotransformer has negative output high volts, as mounted properly. The pre 1982 Magneto transformer mounted upside down is positive high volts with loss. The aftermarket UNIVERSAL type trigger module works for either pos or neg high volts as used with MAGNETO The Briggs type separate trigger module is hard to modify for positive volts. A Magneto WITH a solid state trigger module , is called a Magnetron. The new 2023 China type and OEM RED BOX Briggs Brand type ignition Magnetrons all have the new Universal type trigger embedded, not the old style Briggs trigger. This now means, a SPARK at a lower RPM of starter mode turning of flywheel., just like in the olden days of pull cord spark!
Sorry not trying to be petty. But a minor correction. An individual electron only moves through a wire at .02 cm/second(~.5 inches per minute). It is only the signal that moves at approximately the speed of light. You can compare it to a hose full of water. When it is turned on the water almost instantly comes out the end.
Thank you for your comment and for bringing up this interesting point! You are correct that the drift velocity of an individual electron in a conductor is indeed very slow, typically on the order of millimeters per second. The analogy of a hose full of water is a good one to explain this concept. When we turn on a hose, the water pressure causes water to come out almost immediately, even though the individual water molecules move much more slowly. Similarly, in a wire, the electrical signal (or electromagnetic wave) propagates at a significant fraction of the speed of light, causing the "effect" of electricity to be felt almost instantaneously, even though the electrons themselves are moving much slower. Thanks again for your input and helping clarify this interesting aspect of electricity!
The electrical/electronic diagram of the coil is not explicit presented. The diagram must show correctly the two magneto coils (primary, secondary, the gnd conections inside of the coil magneto, etc. It is corect to use magneto like name and not coil. Coil is a "bobine" and the magneto is an ansamble of electrical/electronic items. It means that the magneto frame is GND common for two coils, primary and secondary. The magneto secondary coil output go to the spark plug hot pin. For the magneto primary coil there are GND from magneto frame and an external hot pin to be conected to GND magneto frame or not connected to GND magneto frame. See the switch (killer magneto primary coil). The magneto inside electronic section inside can be discovered in other link.
What you Must understand is that what you are saying is much more complex than what most people ever want to know. As the great Bruce Lee once said "Simplicity is brilliance". Your explanation is correct, but when giving information to a general public type ordinance, they don't require another intellectual textbook style of explanation. It is this style of education and explanation that made people turn their backs on school life in the first place. The information in this video is a good visual overview, it is NOT meant to be intellectually perfect. But it is for far more interesting than an intellectual textbook explanation. As the famous public speaker, Simon Sinak said " the world needs more people who can take science and teach it to a truck driver". Therefore, we don't need more of the intellectual explanation, we need more creative ways to portray it.
Hi can you avswer this problem 190cc lawnmower know spark has a new coil& spark plug flywheel key & magnets good kill wire on& off still know spark could it be a short or internal timing fault thanks much appreciated
Hi. Please take the following as a guide only and always consult a professional before undertaking any work on your lawnmower: There could be a number of possible reasons why your 190cc lawnmower isn't sparking despite having a new coil and flywheel key. Here are some troubleshooting procedures to take into account: Check the Spark Plug: Make that the spark plug is in good shape and is gapped correctly in accordance with the manufacturer's instructions. A damaged spark plug could prohibit ignition even with a new coil. Replace or clean the spark plug as necessary. Examine the connections between the ignition switch and the wiring to make sure they are secure and linked correctly. The electrical circuit can be broken by loose or damaged wires, which will stop the spark from happening. If necessary, fix or replace any damaged components. If your lawnmower has a kill switch or other safety mechanism, test it to make sure it is not activated or broken. Check to see whether the spark is restored by disconnecting any kill switch wires and trying to start the lawnmower. If so, the kill switch might require repair or replacement. Check the Flywheel: Look for any damage or debris that might be interfering with the rotation or alignment of the flywheel. Make sure that the new flywheel key is placed correctly and is not broken or sheared. Flywheel misalignment or damage can alter ignition timing and prevent sparking. Make sure all grounding connections are safe and in good shape. Check the grounding. The operation of the ignition system can be hampered by a bad or sloppy ground connection Consult a Professional: If the problem still exists after you have eliminated these typical reasons, it may be wise to contact a seasoned lawnmower specialist or take your machine to a repair shop. They will be able to identify and fix any underlying electrical or ignition system issues thanks to their knowledge and specialised equipment. When servicing the ignition system on your lawnmower, put safety first. Always seek expert help if you are unsure of or uncomfortable with any troubleshooting steps. I hope this helps a little Craig
