How to test the switch on a Honda scooter

Chinese-made mopeds are simple and convenient to operate. We hope that the video in this article, along with the original wiring diagrams, will help you maintain your two-wheeled vehicle. And tips will help you avoid mistakes (see also Java 638 wiring diagram).

Moped Alpha sport: features of the model and the switch

One of the favorites of the modern domestic market of motorcycle equipment is a Chinese sports moped called Alpha. This model has a number of significant advantages. Fans especially appreciate the fact that only two liters of fuel are consumed per hundred kilometers of fuel.

test, switch, honda, scooter

Moped service

Like any vehicle, Alpha mopeds need routine maintenance, the essence of which boils down to:

  • Replacement of parts and assemblies, whose resource has worked out;
  • Setting up and restoring the factory parameters of the main components and assemblies;
  • Visual inspection of the moped for breakdowns.

Chinese engines quite confidently “cure” 20,000 km on our domestic fuels and lubricants without breakdowns and piston group bulkheads. The main thing is to change the oil in a timely manner, especially during the break-in period.

If you do not operate the moped in harsh conditions (winter, cross-country cross-country, etc.), then all oil seals and rubber seals will also last a long time.

Tip: Change the air filter often. This will save the carburetor and make it easier to start the engine in all operating modes.


Alpha Sport, a stylish black moped from Asia, has the following characteristics:

  • engine displacement is 110 cubic centimeters;
  • fuel tank volume. 6.5 liters;
  • there is an electric starter as a starting system;
  • carburetor as fuel injection system;
  • the model is capable of reaching a speed of 100 kilometers per hour;
  • the moped weighs no more than 85 kilograms;
  • braking system. rear and front brakes;
  • transmission. mechanical 4-speed;
  • shock absorbers. 2 pcs;
  • wheel size. 17 inches.

Also, the model is equipped with a wardrobe trunk (rear) and an alarm. The engine is air cooled. Additional dynamics are provided by an extremely powerful motor, and a strict sporty exterior. in particular, creative colors, a compact fairing and reliable black rims.

Switch and circuit device

How to check a scooter switch if you don’t even know what it is and where to look for it? That is why you need to start small. The first thing you need to do is find out what a switch is. In fact, everything is quite simple, since a switch is an element of the ignition circuit in a vehicle that generates 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 the ignition coil, in turn, a high voltage pulse is generated at a specific point in time, which is transmitted to the spark plug. 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.

How to check the switch on a scooter, principle of operation and description

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, or 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 exactly how 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 the question of how to check the switch on a scooter, you should understand what it is all about.

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 to know how to check the operation of the switch on a scooter yourself, then you should remember that you will not be able to achieve accurate measurements if your switch remains in the same place where it is always located. 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 will learn how to test the 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 shutdown. If you have only one switch and tester, then you can only check zero voltage. When the arrow of the tester does not move at one of the outputs, it means that there is no voltage in it.

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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, then you have to use more efficient methods. How to check the malfunction of the switch on a scooter with maximum accuracy? You will need another working scooter for this.

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 to know how to check the operation of the switch on a scooter yourself, then you should remember that you will not be able to achieve accurate measurements if your switch remains in the same place where it is always located. 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 will learn how to test the switch on a scooter with a multimeter, just like on a car, and what are the disadvantages of this method.

Buying a switch

Buying 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 the 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.

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 fact 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 matter 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 prefer to save time and hassle and buy a new switch right away when they find out that their current one is out of order.

Simulation stand

If you do not have a second scooter, and there is also no way to get access to it, then you should think about purchasing 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 get a stand, or still try to find another scooter to test. Many people are leaning 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 is the depth of the test: 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 required number of revolutions 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.


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 junk, 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 where exactly the problem is in order to fix it.

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If your switch is not working or not functioning in the best way, 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 how exactly to check these elements. This material focuses specifically on the switch, so attention will be paid mainly to how to check the switch on a 4T scooter and other popular models.

Switch Symptoms

One of the main symptoms of a malfunctioning switch is loss of spark. The engine does not start well and stalls from time to time, there are interruptions in work.

But do not rush to replace it. it is important to make sure of the reason, because the loss of a spark can occur for a number of reasons. failure of the Hall sensor. broken timing belt, faulty ignition coil, poor contact in the distributor cap, problems in the wiring, and so on.

If the diagnostics of the remaining nodes did not give results, then you can proceed to our “hero”. But how to check the switch, because the device has a very complex design?

How to check the switch with your own hands

Greetings to you friends on the do-it-yourself car repair site. The ignition system of VAZ cars performs one of the main functions. it forms a spark, ensures the ignition of the air-fuel mixture and the efficient operation of the power unit.

But the ignition system is not just one unit or part. It consists of several complex elements, one of which is a switch.

What is the purpose of this device? How can I check it? When to replace?

Purpose and design features of the switch

The switch is one of the elements of the vehicle’s electrical equipment. Its task is to ensure the normal operation of the contactless ignition system. The assembly is fastened in the engine compartment.

The device is robust and can withstand severe vibration and shock. This is very important, because the switch housing contains shock-sensitive electronics.

At the heart of the VAZ switch is the standard L 497 microcircuit, which controls the “N-P-N” type transistor.

The peculiarity of the circuit is the possibility of programming by the user and setting the required delay coefficient. Starting a cold engine directly depends on the correctness of this indicator.

Thanks to precise tuning, it is possible to accelerate the crankshaft speed (while eliminating dips in operation) and guarantee high-quality traction of the power unit.

The main parameters of the device include:

  • Voltage range. from 6 to 16 volts;
  • working voltage level. 13.5 volts;
  • ensuring an uninterrupted spark when the crankshaft rotates in the range from 20 to 7000 rpm;
  • switching current. from 7.5 to 8.5 A.

How to check the switch on your own

Most car enthusiasts do not fool with diagnostics and just put a new node. This method has its advantages. Firstly, there is no need to waste time on checking. just install a new part.

Secondly, you can immediately determine whether it is the reason or not. In fact, you should not be afraid of work, because checking the switch takes several minutes.

So, to do work at home, a test lamp (nominal voltage should be 12 Volts) and a standard set of keys are enough.

With their help, you can make sure of the presence or absence of pulses, and then decide on the health of the device itself.

The algorithm for checking the switch is as follows:

Using a wrench “eight” unscrew the nut and remove the wiring from the ignition coil marked “K”. This wire is easy to recognize. it is brownish in color and is routed to the terminal labeled one on the switch;

Connect this wire through a test lamp to the “K” terminal on the ignition coil. and then connect the battery;

Turn on the engine starter and observe the lamp. If it blinks, the switch is OK. If the light bulb does not show any signs of life, then the only way out is to replace the device.

If there are doubts about the serviceability of the part, the check should be carried out at a special stand (there is always one at the service station).

In this case, it is possible not only to determine the fact of the product’s performance, but also to measure the duration of the impulses.

At the first suspicion, you should not immediately change the switch or spend money on a master. You are quite capable of handling the work with your own hands.

Small Engine Repair: How to test the Ignition Switch or Kill Switch on a Honda GC 190

over, now you know how to check the switch on the VAZ 2109 and other models of the domestic brand. It remains to allocate time and prepare a minimum set of tools. Have a good road and, of course, no breakdowns.

Photo report: How to check the scooter generator?

Just like that, without minimal knowledge in electronics, at least at the level of the school curriculum (like mine) and the simplest tester-multimeter. you won’t be able to check the generator, don’t even dream. Before taking on such work, you should at least be able to use a tester and understand that the current can be alternating or constant, know what an electrical impulse is and what is resistance. Do you know all this? Did you hold a tester in your hands? If yes, then let’s not hesitate.

Checking the generator’s performance. you should start with measuring the voltage, which, in fact, the generator should generate and transmit through the wires to the consumers. We look where the wiring harness from the generator comes out of the engine. we move along it until we reach the connector with which the generator is connected to the on-board network of the scooter.

On the vast majority of scooters, the generator connector looks something like the picture. In the common connector, there is one plug and two wires that are connected to the on-board network of the scooter through round terminals.

The plug combines the connectors of the two main windings of the generator: the working winding (yellow wire), which ensures the operation of the headlight, turn signals, backlight and other consumers. And the control winding (white wire), the control winding provides voltage control in the main winding of the generator. That is, when the voltage in the working winding of the generator rises above the specified limits, the voltage regulator relay supplies current to the control winding of the generator, due to which the voltage in the working winding of the generator drops to a predetermined limit. When the voltage drops, the opposite process occurs.

In this generator, the main windings are wound with a thick copper wire on six coils.

The third winding of the generator, which is usually called high-voltage or guiding and magnetic induction sensor of the generator, is connected to the on-board network of the scooter through round terminals.

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High-voltage winding of the generator. provides the generation of a high alternating voltage (the voltage in this winding can reach 160 V and more), which directly enters the switch, where it is rectified, then accumulates in the capacitor and at a certain moment is fed to the ignition coil in the form of a pulse.

In this generator, the high-voltage winding is wound with a thin copper wire on two coils. High voltage coils are carefully insulated on the outside.

There are generators in which the high-voltage winding is wound on only one coil.

A small clarification: ignition systems in which a DC CDI type commutator is installed, the high-voltage winding does not participate in the formation of a spark charge on the spark plug, so there is no point in checking it. Scooter manufacturers install a generator with a high-voltage winding, but do not use it (meaning ignition systems with a DC CDI switch). It’s just wrapped around a generator and that’s it. I will say more: due to the fact that the winding during the operation of the generator is not loaded with anything, over time it simply burns out.

An example of a generator, on two coils of which a high-voltage winding is wound as not involved in the work. I checked this winding. the tester showed an open circuit, which confirms the above.

The resistance of the leading winding of the generator is always higher than that of the other windings. The wire coming from the lead winding of the generator is almost always red and black.

The magnetic induction sensor, when a special ledge on the generator rotor passes by it, generates an alternating pulse, which opens the teristor through which the switch capacitor is discharged to the ignition coil.

The wire coming from the magnetic induction sensor is almost always blue and white.

A small educational program: Traders and collective farm tusks, a magnetic induction generator sensor, CDI ignition systems. called a hall sensor. My dear ones. Maybe that’s enough already. Where does this illiteracy come from. The magnetic induction sensor of the generator, the CDI ignition system, namely, this system is discussed in this article. it has nothing to do with the hall sensor! And do not listen to these hucksters and “gurus” who say the opposite.

We switch the tester to the alternating current measurement mode (ACV) for a range of 200 V and not less. Remember that the voltage of the lead winding can reach 160 V and more, so the voltage measurement range of the lead winding must be at least 200 V.

Testing Motorcycle Switches

Disconnect the plug and the round terminals of the main harness. connect one tester probe to ground, connect the other to the terminal (black and red wire) of the generator lead winding. We turn on the ignition and turn the engine with a starter. A fully functional lead winding should give approximately the same values.

The pulse generated by the sensor is very weak, therefore, we switch the tester to the alternating voltage (ACV) measurement mode for the 2 V range. Measurement of the pulse from the sensor in a higher range may not give a result, since the tester may simply not catch it. Use for this purpose only a tester with a range in the AC voltage measurement mode of not more than 2 V.

We do everything in the same way as in the first example. The pulse from the sensor should give approximately the following values.

By analogy with the first two examples, we measure the voltage in the working winding and the control one. We put the tester in the mode of measuring alternating voltage (ACV) for a range of 200 V and measure.

Well, that’s measured. Do all windings generate current? Or not all. If any winding does not deliver current, then like it or not, you will have to remove the generator and check it in more detail. But if the windings generate a current of approximately the same magnitude as in the pictures, then this means that your generator is in perfect order. Something like this…

We put the generator so that the conclusions of the generator windings are available to you. Determine the ends of the terminals of all the generator windings. Finding the ends of the windings is very simple: we look at the color of the wire that is soldered to the terminal block and determine what kind of winding it is.

I’ve marked the ends of the windings with arrows. The arrows are selected by color in accordance with the color of the wires soldered to the terminal block. The green arrow marks the terminal block on which the ends of all windings are soldered. this is the ground terminal block.

We switch the tester to the dialing mode, take any wire from the common harness, connect any tester probe to this wire, touch the second probe to the terminal block to which this wire is soldered. The tester should beep and show zero resistance.

If the tester is “silent” and shows digits instead of zeros, it means that somewhere there is a wire break or poor contact between the end terminal and the wire. Inspect the wire carefully for an open circuit and, if necessary, replace it with a new one. The remaining wires, including the sensor wire, are checked in exactly the same way.

After checking the wires, we proceed to check the generator windings for breakage and interturn short circuit. We switch the tester to the dialing mode, touch any tester probe to the generator case, with the second probe touch the end of the wire of any winding or terminal block.

The high-voltage winding in the continuity mode should show approximately the same resistance value. If the high-voltage winding did not show resistance or showed little resistance, then this means that somewhere there is an internal breakage or interturn short circuit. You understand that such a malfunction cannot be “treated”.

When checking the rest of the windings, the tester should emit a sound signal, the resistance of the working windings is very small, so most likely you will see only zeros on the tester’s display. If the tester did not emit a signal, it means that there is an internal breakage somewhere. Such a malfunction is not subject to “treatment”.

We put the tester in the dialing mode, touch any probe to the sensor body, with the second probe touch the sensor wire or the terminal on the body to which the wire is soldered. The resistance of the sensor winding should be approximately within these limits. If there is little or no resistance, replace the sensor with a new one.