A huge number of 4t scooters are offered on the territory of Russia. Low-quality switches are installed in budget-class models, which tend to burn out under the influence of increased load or moisture. Owners of more expensive equipment can also be affected by this issue, because with the help of switches, manufacturers limit the maximum speed of movement. Before performing any work, you should carefully familiarize yourself with the features of the electronic filling of your vehicle. This will save a lot of money on referring to specialized masters, and will make the procedure as fast and comfortable as possible.
The main differences between switches
Products from Chinese manufacturers, as a rule, use one of two types of switches - DC or AC. The physical feature of the former is much larger. The principle of energy storage for the transmission of a spark is also of a different nature. In DC, a rechargeable battery is used to accumulate a spark (the switch is powered directly from a 12 volt battery). In the case of AC switches, this energy comes in through the use of one generator coil (the switch is powered by a ~ 160 Volt coil). This is where the differences between the presented varieties end.
Features of work
Before starting the assembly, it will not be superfluous to take a smartphone or digital camera with you to familiarize yourself with the correct pinout scheme. You can also go to profile Internet resources and find official images showing the connection diagram of the electronic filling. Do not forget to bring a complete set of electrical tools that you may need to complete the replacement.
Having found a switch, you need to specify its type. To do this, just connect a multimeter to the supply wire, start the ignition and look at the display readings. Before us will be DC-type only if power appears.
It also happens that food does not appear. In this case, select the AC test mode by selecting a range of 200 volts. Scroll the power unit with the starter. In the case of AC switches, power will appear immediately.
Why is it important to determine the type of switch?
Some scooter owners (in particular, from the Yamaha company) often face the problem of correct identification. There are practically no official manuals, so the owners have to work blindly and believe in luck. Buying a switch that is not designed to be used on a scooter can have serious consequences. The first of these is the instantaneous failure of the part being replaced. There is no difference in what kind of switches are installed - DC on a scooter that supports only AC, and vice versa. The electronic filling will instantly burn out. In some cases, there was a failure of a number of other related elements of electronics - light bulbs, mini-radio, alarms, and so on. Not knowing which switch is installed on the scooter, owners are guaranteed to fly in for good money.
Before connecting a new switch on a scooter, it will not be superfluous to first familiarize yourself with the official manuals. In some cases, manufacturers indicate information about the installed switches on four-stroke scooters.
You can make the connection according to a special scheme, or you can do the work yourself, having previously photographed all the connection points of the connectors. Mindfulness and slowness are the main factors that determine the success of the work performed.
How to connect a four-stroke switch (video)
The scooter ignition system is needed to ignite the gasoline that enters the cylinders. It is very important that the moment of fire is chosen precisely, otherwise the scooter will not run. Ignition provides a powerful electrical discharge from the spark plug. This requires a voltage of at least 15,000 volts, it can only be obtained thanks to the ignition coil, which converts the voltage supplied by the battery. On older models, a contact cam ignition was installed, modern ones are equipped with a contactless one, which shows itself better and more practical.
Scooter electronic ignition device
The modern ignition system of a 4t scooter is designed as follows: the switch and the coil, which are its main elements, provide high voltage to the spark plug, which generates an electrical discharge that can ignite the fuel. The coil generates a high voltage due to electromagnetic induction. The switch is needed to distribute the voltage of its interruption at the right time. Inside contains an electronic circuit, a thyristor and three outputs for wires. At the right time, the switch applies voltage or turns it off.
The principle of operation of the scooter ignition system is as follows: the battery supplies voltage to the coil, which is often tied to the switch in one block, the switch supplies voltage to the spark plug, decides when to interrupt it. The mixture in the cylinders ignites at the right time. The correct operation of the engine and whether it will start at all depends on how it is configured and depends.
Switch
For many scooter models, the switch is combined with a coil, so if one of the devices fails, you have to change the entire unit. Such spare parts are inexpensive.
Externally, the switch looks like a plastic box. Inside there is a microcircuit, a variety of electronics that cannot be repaired. In addition, there is a thyristor. The task of this element is to interrupt the electrical impulse at the right time; for this it has three conclusions. When a current hits one of them, the thyristor turns into a conductor, and the current moves from the input contact to the output. When a certain voltage is reached and the current drops, the pulse is interrupted, after which the Hall sensor returns the thyristor to its original position so that the signal goes back to the third output. The process is repeated every time the voltage is applied again.
Read also: Ways to adjust and adjust the scooter carburetor
Ignition coil
A high-voltage coil is used to convert 12 volts into several thousand, which will be enough to ignite a mixture of gasoline and air. The device works according to the principle, which is based on electromagnetic induction.
For this, two types of winding are used - primary and secondary. They differ in thickness and both are wound on a metal base. As a result, a magnetic field is formed between the secondary and primary windings of the ignition coil, which is capable of injecting an electric charge. The primary winding has much less turns. Passing through it, the electric current creates a voltage induced in the secondary winding. As a result of this pulse, the small voltage initially produced by the battery rises to several thousand volts.
After that, an electrical impulse is applied to the candles using a switch. It is important that this occurs at the exact moment of movement of the piston in the cylinder. The current to the candle is transmitted through a thick high-voltage wire, which practically eliminates the loss of current during movement.
Spark plug
A candle is responsible for igniting the combustible mixture both in the ignition system of 2 tons of a scooter and 4 tons. There are the following types:
- Cold.
- Hot.
For the right choice, you need to decide on the operating mode of the motor. Cold candles have a short insulator, they can easily remove heat from the electrodes, as a result of which they hardly heat up. Hot candles work in a different way. Their insulator is long, it prevents the rapid removal of heat, as a result of which the electrodes heat up. There is no fundamental difference, however, it is easier to start on a cold one if you use hot plugs, and a warm engine works better on cold ones. Perhaps it makes sense to change them depending on the season or storage conditions.
If the candle does not warm up enough, carbon deposits will form on it, which prevents it from working properly. This may cause the engine to stop starting. The problem can be solved in several ways: adjust the carburetor by leaning the mixture, or choose more suitable candle models. If the spark plug overheats, the mixture will ignite too early and the engine will lose power and fuel consumption will increase dramatically. To prevent this from happening, you need to correctly set the ignition. In this version, sparks on the plug will appear earlier, and the engine will be easier to start.
Generator
In a scooter, the generator is located in the engine, so it cannot be seen with the naked eye. The task of this element is to generate current during the movement of equipment and recharge the battery. If it does not work, you will not be able to continue driving, as the battery will lose its charge very quickly.
1 - rotor, 2 - stator, 3 - ignition system sensor
The device generates alternating current and powers the entire electrical system of the scooter. There are five wires to the generator, one of which is ground and connects to the frame. Another, usually white, goes to the regulator relay. This relay acts as a rectifier and stabilizes the voltage. 
Low and high beam are connected to the yellow wire. A hall sensor is connected to the generator. From it there are two wires - red-black and green-white. The sensor is also connected to the CDI ignition module.
Read also: What gasoline to fill in the scooter
Ignition circuit elements
The ignition circuit is an important part of the scooter's electrics, without which it simply won't go without proper assembly. The circuit includes a coil, spark plug, switch, generator, CDI ignition module. The latter looks like a small block, on the one hand it is plastic, on the other hand it is filled with a compound. It is for this reason that when a unit fails, it is completely changed without trying to disassemble it.
The CDI module has outputs for connecting five conductors. It is usually located close enough to the battery, can be attached to the scooter frame or have a special cell. Most often, the CDI unit is located closer to the bottom of the vehicle, so it is not easy to reach it. The system will not work without this element.
Relay regulator
The relay-regulator is colloquially called a stabilizer. This element is needed in order to rectify the voltage and stabilize it to the desired level, which is suitable for the operation of the scooter's electrical appliances. Look for it in Chinese and many Japanese models in the front of the vehicle, usually under the fairing. During operation, the radiator of the part gets very hot, so it is placed where it can receive air cooling.
The generator, during operation, produces an alternating current, which first goes to the relay-regulator, and then moves on. The relay converts alternating voltage to direct voltage, in addition, it stabilizes the voltage up to 13.5-14.8 volts. If the voltage is less, the battery will not be able to charge, if more, there is a high risk of failure of the electrical system.
The regulator usually has 4 wires. They differ in color; in the standard diagram, the green wire is always ground. Red is under constant voltage. White supplies the regulator relay with the voltage produced by the generator: this is alternating current. The yellow wire also goes from the generator to the relay regulator. The relay converts the voltage, turning it into a pulsating one. After that, the voltage goes to the lighting devices, which are the most powerful consumers. Some models have an illuminated instrument panel, auxiliary lighting, running lights or other types of suspension. All this is powered by the same wire.
It is impossible to stabilize the voltage that serves to power the lamps. It can only be limited by means of a relay-regulator to a level of 12 V. Even when operating at low speeds, the generator produces an excessively high voltage, which is not suitable for the operation of lamps and other lighting devices. If the relay-regulator is faulty, dimensions or lamps, which will be on at that moment, may burn out.
The scooter is a fairly common vehicle today, it does not require a lot of fuel, but at the same time it does not give the incredible speeds that its two-wheeled motorcycle brothers can boast. This is a rather specific type of transport that not everyone will choose for themselves. But all people who love scooters are always in awe of riding them, they have a lot of fun and they also find them extremely practical. But at the same time, not a single vehicle is insured against breakdowns, including a scooter.
Faults can be very diverse, but this article will focus on electronics, and more precisely, how to check the switch on a scooter. Naturally, if you have no idea what this is about, then you should not immediately take up the tools. It is better for you to calmly and carefully study how exactly the electronics in a scooter are arranged, what is the difference between checking the switch on a car and on a moped, and also what exactly you can do to check the electronics for damage and repair your vehicle. In general, before considering how to test a switch on a scooter, you should understand what it is all about.
Switch and circuit device
How to check a switch on a scooter if you don't even know what it is and where to look for it? That's why you need to start small. The first thing you need to do is find out.In fact, everything is quite simple, since a switch is an element of the electrical ignition circuit in a vehicle, which produces a low voltage pulse that is transmitted to the ignition coil. Apart from the general picture, the definition does not look very clear, so it is worth considering the structure of the entire circuit.
So, the main element here is the generator, which generates the operating voltage in order for the switch considered in this article to work. As mentioned above, with the help of the generator's energy, the switch generates a pulse for the ignition coil, but not just a pulse - it is a low voltage. In turn, a high voltage pulse is generated at a specific point in time, which is transmitted to the candle. The candle is screwed into the cylinder head and, upon receiving a high voltage pulse, ignites the combustible mixture, which drives the engine. Well, now you know how the electrical circuit works in a vehicle, which will give you a better understanding of how to test the switch on a scooter.
Malfunction
What prompted you to study the article on how to test a switch on a 4T scooter or any other common model? Most likely, your vehicle has stopped starting, but you are not sure what exactly the problem might be. Perhaps the ignition is jolting, perhaps the engine stalls. All of this may or may not have a reason in the switch - this is the main problem of repair. You need to determine exactly where the problem is in order to fix it.
If your switch is not working or not functioning well, then a low voltage pulse will not be transmitted to the ignition coil - accordingly, ignition will not occur. But the problem can be in the generator, and in the coil, and even in the candle, so you need to know exactly how to check these elements. This material focuses specifically on the switch, so the focus will be mainly on how to test the switch on a 4T scooter and other popular models.
Switch on car and scooter
Many car enthusiasts may be surprised, as they know that checking the switch in a car is a matter of minutes. To do this, you just need to use a voltmeter, which sometimes even comes directly with the car. You just need to know where to connect what, and no problems arise at all. However, in the case of a scooter, things are a little different.
If you want the operability of the switch on a scooter on your own, then you should remember that you cannot achieve accurate measurements if your switch remains in the same place where it is always located. More specifically, all this will be considered a little later, but now you just need to understand that checking the switch on a car and on a scooter are slightly different things, so you should not think that the process will be identical. Read on, and you switch on a scooter with a multimeter, just like on a car, and what are the disadvantages of this method.
Testing the Switch with a Tester
If you have a special testing device, that is, a tester, then you can use it on the switch, since in any case it can give certain results. You can use a simple voltmeter, you can use a more versatile multimeter, but in any case, you need to remember that this part of the scooter has five leads - to ground, to the sensor, to power, to the ignition coil and to turn off. If you have only one switch and tester, then you can only check zero voltage. When the tester needle does not move at one of the outputs, it means that there is no voltage in it.
However, a complete loss of voltage is not always a consequence of damage - sometimes it can happen that at any of the outputs it will be unstable, underestimated, and so on. And you will not be able to find out about this if you do not have the same switch to which measurements have already been made, for comparison. As you can imagine, this is only a partial check, that is, you can use this method in order to figure out how to check the switch on a Yamaha scooter or on any other specific model. But if you want to do a full check, you will have to use more efficient methods. How to check the malfunction of the switch on a scooter with maximum accuracy? To do this, you will need another working scooter.
Checking on another scooter
If you are wondering how to check the switch on a Honda-Dio scooter, then in this case you will not need another Honda-Dio to complete the procedure. We will talk about the interchangeability of switches for scooters a little later, but now you need to understand that you can get accurate readings if you have another scooter in the nearest access. This method is the simplest and most common.
You need to turn off the switches on both scooters and then connect the item under test to the other scooter. If everything works fine, it means that the switch is okay, that is, the problem should be looked for in some other area. Naturally, this is additional work, but the fact remains - you learned how to check the serviceability of the switch on a scooter, you made the check and got the result. If the problems persist, then you have found it - you will need to repair or replace the switch, but this will also be written about later.
At the moment, it's time to move on to another very interesting way - imitation.
Simulation stand
If you do not have a second scooter, and also there is no way to access it, then you should think about buying or making a special stand for yourself that would imitate the operation of your scooter. It is ideal to test the switch on a Honda scooter, as well as on any other model, and if you constantly use such a vehicle, then there is a chance that you will have to use the stand more than once or twice, therefore, you should definitely invest into it.
Now it is much more convenient to purchase it and install it in your garage, so that, if necessary, you can always check any part without using another scooter. But you can also do it yourself - only in this case you need to have very high skills and abilities in engineering, and it is also desirable to have an impressive experience of dealing with such equipment. You should also know that such a stand has other advantages over a second scooter for control.
Difference between stand and second scooter
Let's say you are wondering how to test the switch on a 2T scooter. You have read this article and realized that simply using the tester will not give you the results you want. Therefore, you are faced with the question of whether to acquire a stand, or still try to find another scooter to test. Many people lean towards the second option as it looks much simpler and more convenient. However, you should still consider the first one, as it has several significant advantages. One of the biggest lies in the depth of verification: if with a second scooter you can simply test the functionality of the switch and some of the details of its operation, then at the stand you will have a full range of possibilities. Everything will be in front of your eyes, you can use the tester on any element, set the number of revolutions you need in order to test at various degrees of load, and so on. You can even check the compatibility of the switches with the ignition coils, as well as come up with any checks and tests that your imagination will allow.
In general, you will have a full flight of imagination. You will receive an answer to the question not only about how to check if the switch is working on a scooter. You will be able to get an answer in general to any question that will concern your vehicle. However, it should be said right away that if you just decided to buy a scooter for a couple of years, then change to a motorcycle or a car, then you should not waste time and money. The stand is more suitable for those people who are confident that they will ride a scooter for many years.
Switch repair
So, you have received all the necessary information on how to troubleshoot the switch in your scooter. Now you can spend some time discussing how to fix this problem. The first option is renovation. You may be surprised, but this is far from the most common option, and now you will find out why. The thing is that the scooter switch circuit is most often filled with very strong plastic, and if you try to clean it off to make repairs, then there is a very high probability that you will cause irreparable damage. Therefore, if you still want your switch to be repaired, then you should entrust this business to a specialist who has owned a soldering iron for several years and has been doing similar things. However, as mentioned earlier, this method is not very popular, as it is very troublesome. Most scooter owners would rather save time and hassle and buy a new switch right away when they find out that their current one is out of order.
Buying a switch
Purchasing a switch is the easiest and fastest way out, since you do not waste time, effort, and the cost of this mechanism is not so great as to save a lot on it. This is really the smartest way out that you can think of in a situation where your switch burned out. However, again, it is very important that you check everything correctly, do not use only a tester, but carry out a full-fledged procedure for checking the switch, so that you can say with accuracy that the reason lies precisely in it. Otherwise, you will simply spend money on a new part, but your scooter will still not function.
Interchangeability of switches
Separately, it is worth talking about the interchangeability of switches for scooters, since this issue worries so many people who use these vehicles. Fortunately, this question only brings positive emotions, since in most cases the switches on different scooter models are interchangeable. This means that in the event of damage to one switch, you do not have to search for the exact same switch everywhere, because you can use any other that you can find.
Naturally, it cannot be said that absolutely all switches are interchangeable, there are some points that you should pay attention to. First of all, this is the presence or absence in the circuit - in some models of scooters, it replaces the ignition coil, and, accordingly, the switch that interacts with will not be suitable for replacing the switch that interacted with the ignition coil. There are other limitations as well - for example, a switch that is used for an engine with a different number of cylinders will not work for you. Fortunately, scooters almost always use single-cylinder engines, but this point is still worth paying attention to.
Operating principle and electronic ignition / switch device. An excellent article on this is taken from the site ntscooters.moy.su
Over the years of development of cars and motorcycles, they came to the conclusion that this scooter system should be as reliable as possible, because scooters are intended for uncaring people.
Therefore, in Japanese motor scooters there are no cam ignition systems as in IZH motorcycles and scooters (old mopeds). Even the oldest Hondas have an electric sensor. But about him later. After all, not all scooters have it. For example, the Suzuki Sepia has a pretty tricky shaft position control system. Therefore, you will not find diagrams of this switch on the Internet. It is quite complex in terms of internal architecture. I'll talk about this later. And now I want to classify and break into parts the existing ignition systems on Japanese, Chinese, Korean and European scooters.
Several systems are distinguished depending on the type of engine. On 2-stroke Chinese mopeds, there is a system exactly copied from Sepia. But in terms of reliability, it is simply terrible! The switches are on, but the noise is on! Personally, they brought me about 5 such mopeds with this symptom. It may be a defective batch, but take note. Immediately, I note a significant difference between this system and Honda's and Yamahov's - this is the absence of an ignition sensor (aka an induction sensor). I will describe the entire internal process later.
There are several types of switches on Japanese Honda mopeds. I will not write about tuning, we will limit ourselves to the standard. The 18E engines have the simplest and most reliable ignition system of all scooters. By its design, it strongly resembles the ignition of the Carpathian mopeds, if it does not copy it exactly, which is quite likely. It differs from narrow ignition by the presence of an ignition sensor (induction) and a separate coil on the generator, which is not connected in any way with the rest of the scooter electronics. This has advantages: when the generator is overloaded with lighting fixtures and other things, the ignition system will not fail. But it also has one significant drawback. A large amplitude voltage comes out of this coil on the generator, about 160-600 volts (at different speeds), which is felt if water slightly gets on the switch contacts. Also, under certain conditions, this coil can simply short-circuit in turns (due to the amplitude), and then your scooter will stand up, and you will not even understand what the matter is. You will look for the cause of a weak or absent spark for a very long time. Also, tuning switches for this system are complex in design. After all, you know that they nonlinearly change the ignition timing at different speeds. And here there is also current and voltage jumping. Therefore, it is necessary to make a stabilization system, and a serious one. There is no such thing in stock switches, but if you want to understand the nuances at low levels, then you need to know this.
For some reason, I have a feeling that tuning switches do not have microcircuits, and the advance is made simply by the timing chain RC, but this is just an assumption.
I will also write about the ignition system of the 34th Honda engine. Everything is a little different here. There is also an induction ignition sensor, it is identical to the sensor from the 18th engine. But the switch is powered not from a separate ignition coil, but from a common battery charging circuit. That is, in other words, from the battery. Also the regulator is slightly different. A higher current is supplied to the battery here so that it does not discharge from the switch.
There was a case with me: I was driving from the dacha, due to my inexperience in assembling the motor, the wires coming from the generator hung at the bottom of the motor. I somehow did not notice them. It was already getting dark when I ran over a stone. The headlight turned off immediately. I thought the lamp burned out. But switching the headlight mode did not correct the situation: there was no light. I stopped and checked the taillight. She also did not burn. I thought that the wiring was cut off or the regulator ran out. Since I wasn’t particularly strong in electronics at that time, I scored and went home. There were 4 kilometers to the house. I arrived safely, but in the morning I found out that the wires coming from the generator had simply been cut off. Except for the ignition sensor wire. The battery has been trashed. It turns out I was driving it! Of course, in some cases this can be considered a plus!
And now a little science. This system was designed to completely free the scooter from water dependency, increase generator reliability and get rid of "extra wires". The switch design is more complex due to the lower supply voltage. But now we can easily install elements that are sensitive to energy surges. Therefore, it is undesirable to ride on such scooters without a battery. It kind of smooths out the ripple and stabilizes the mains voltage.
Yamaha and Suzuki scooters and Chinese scooters have similar ignition systems.
And now I'll tell you a little about how the switch works. With the generator, I think everything is clear. It generates an alternating voltage of a given amplitude at a certain crankshaft speed. In order for an arc to occur, it is necessary to know the dielectric properties of the air. The breakdown voltage for 1 mm is about 3 thousand volts. Also, for reliable ignition, you need to create a spark of a certain duration. The main energy converter for igniting fuel on a scooter is a bobbin or ignition coil. It makes from 100 - 400 volts about 6,000 - 20,000 volts. However, the current also decreases proportionally. Those who have touched high-voltage wires at least once know what it is.
Well, okay, the reel is not very complicated and practically eternal ... Although if we are not talking about the Sepia switch. In it, the reel and the switch itself are in one.
The task of the switch is to apply a pulse to the bobbin at a certain point in time, of a certain duration and amplitude. What I will write next may be incomprehensible to many, but radio technicians will understand for sure.
We will consider only thyristor or so-called. condenser ignition systems. They are used in all of the scooters described here ... The switch has a capacitor that stores energy in it. As soon as the moment of spark supply comes, this capacitor will short-circuit to the primary winding of the ignition coil. And this process is controlled by a thyristor. Therefore, the system is called thyristor or capacitor.
According to this principle, the stock switch 18E of the motor works on Honda and on many Chinese. For the amplitude to reach its operating value at the output of the bobbin, the capacitor must be charged with a capacity of 0.5-1 μF and an amplitude of about 200 volts. And, as you may have guessed, the switch has to be powered by a high voltage anyway. Therefore, there is a pulse voltage converter in the switches of 34 motors. It makes 200-300 volts from 12 volts. And another plus is that at any speed the spark will be the same in power, which increases the stability of idling and makes starting easier. This is the difference between the switch of the 18th motor and the 34th. I have not seen such switches on Chinese mopeds. in production they are much more expensive than the previous ones. It is quite possible that such people are used there. I would also like to say about the limiters. They are performed in different ways, most often in a timing chain. And if you change the conder, the limiter will move to one side or the other along the scale. There are also other types.
Separately, it is worth noting the switch from Suzuki Sepia, I repeat that the same is on the Chinese, which our magazine does not recommend. That is, with a pipe bent with the letter S and a two-stroke engine. In them, the basic principle of operation does not differ from the switch with the 18th motor. However, the shaft position control system is different. Exactly what kind, one can only guess. Personally, I have not disassembled any such switch. The Japanese specially made this knot single and mysterious so that no one would want to copy, but craftsmen in China were still found.
Used material from www.ntscooters.moy.su.
Let's talk about one important detail, without which not a single motor vehicle (well, or almost none) can do without it. About the switch. Of the many types, there are only three types for motor vehicles:
- Switch with built-in high voltage generator (DC CDI)
- Switch requiring high voltage power supply (AC CDI)
- Switching coil.
DC switch
DC switch
One of the most common switches due to its ease of connection. The simplest of them has only four contacts on board for the following wires:
- Plus (12V)
- Minus
- Hall Sensor
- Ignition coil
Despite the simplicity, there is a great variety of switches of this type. There are both with and without a maximum speed limiter, with a change in the ignition timing, with additional contacts for a wide variety of needs. For example, you can “hook” a “lazy” to some switches (side stand ), when you open it, the motor will not spin up to the revolutions at which the clutch is activated. This is done in order to protect the driver from himself, and suddenly he wants to run off a standing moped, and will run after him in an attempt to catch him. There were cases :).
AC switch Honda
AC com mutator
It differs from DC switches in the ability to do without direct current 12V. It is difficult to say whether it is simpler or more complex. Rather, we can say that it is different, because, in the presence of a simpler design, it has a more complex option for connecting to the electrical circuit. Unlike DC switches, AC Switches come mainly without a maximum speed limiter due to their small size and rather primitive device, they can boast of the ability to work perfectly in the absence of a number of nodes, without which the DC switch cannot work in principle. a high-voltage generator coil and a Hall sensor and everything will start and go fine. I'm not saying that they are all primitive, there are quite complexly organized switches of this type that can compete with the DC type, but this is a rarity. Despite the absence of the need for direct current, AC very much depend on the "change" and the connection of the motor block with the frame (I and me in view of the general case), and God forbid you to burn or damage one coil in the generator, which generates high voltage, and we can assume that you have already arrived: the moped will not start under any conditions.
Switch coil
Suzuki Switch Coil
The most mysterious mysterious thing of all that I have met. It combines both the switch and the ignition coil in one person, does without a Hall sensor at all. Little has been studied due to its impenetrability and (thanks to the Torque) low prevalence.
Okay, now the specifics ...
Drain switch
A stock or standard switch is the one that is installed from the factory. Its main advantage over the others is that it is already designed for the equipment it works with, often with a limiter so that the motor does not spin up to life-threatening revolutions and the resource of the main bearings, the entire crank mechanism, the cylinder-piston group and other units and assemblies. Let's say that the stock switch is the main reason for the durability of a well-thought-out motor, its efficiency and reliability. Those who take the risk of replacing the stock switch to a sports (tuning) one, believe me, it risks a lot. Even more risks are taken by those who do not fully understand what they are going to do. Inexperienced installation of such parts and their further operation with a standard motor often lead to a decrease in the resource at times and death of the motor, sometimes on the same day.
Sports Switch
What happens to the motor after installing a sports switch and inept handling, I have already mentioned in the previous section. It turns out that a switch without a "cutoff" is pure evil, but before drawing such conclusions, let's figure it out: what is it for, where it is placed and how it is used.
The main task of good sports switches is to free the engine from the upper limit of rpm. A knowledgeable person will never put such a part on an unprepared engine. Such measures are carried out in a comprehensive manner and they are preceded by the replacement of a whole series of parts, only then everything will work as it should. of such alterations, the progression of revolutions changes towards higher ones, the motor becomes more “torsional” and responsive.
Switch with variable ignition timing are designed to level the torque curve and compensate for the lack of power in the required speed zones. If before that the engine, for example, pulled weakly in the low and medium speed zone, now the switch, by correctly selecting the ignition timing, smoothes this failure, thereby providing more even dynamics and allows you to win in overclocking in front of its stock “brother”.
