Moped cdi box problem

A CDI box is used in motorcycles and other vehicles to store electrical energy and deliver it to the spark plugs to ignite the air-fuel mixture in the cylinders, moped cdi box problem. If your vehicle is not starting or running properly, one of the first things you should check moped cdi box problem the condition of the CDI box. In this article, we will learn, how to test a CDI box with a multimeter. The first step is to check the condition of the ignition coil.

Any resources for testing which component might be faulty? I'm wondering what the stator's output must be to sufficiently fire the CDI? Seems there out to be a place to check this at the CDI connections. Most likely its the cdi itself. Very common on all cdi bikes.

Moped cdi box problem

The CDI is like a computer as it controls the engine of your scooter. It instructs the fuel injectors when and for how long they should spray. It also directs the spark plugs on how to perform especially when they have to fire. The CDI goes bad because of different reasons. Some of them go bad because they are old, others experience a wiring short while others go bad because of a faulty charging system. The CDI in your scooter is linked to the ignition. Therefore, if it is in good condition then you will have fewer or no issues with your ignition. It plays the role of storing electrical charge and increasing the spark power on the spark plug. Sometimes, a bad CDI does not cause sparks at all. Again, when a CDI box is about to go bad, it can lead to misfires, issues with starting, rough running or even stall the motor. These mentioned symptoms can be confusing and one has to be careful before concluding that the problem is with the CDI. When the fuel pump has a problem, spark plugs or coil packs are faulty, you would observe similar symptoms. Therefore, the only way you can tell whether your CDI has a problem is by confirming that everything else is in the right condition. The reason is that there is no particular way of testing the condition of the CDI. Your scooter will serve you well if you take care of all its parts.

No matter how clear these steps may be, hiring the expertise of a professional mechanic seems a better option. They will be able to tell you for sure if the unit needs to be replaced. Replace the filter with a new one.

Cdi box keep blowing. ScootDawg's Scooter Forum a. The Dawg Pound. Jun 12, GMT I have a Qlink Pegasus that has blown 3 cdi units recently. I have replaced the cdi units, voltage regulator, ignition coil, pulsar coil. Any suggestions would greatly be appreciated!!!

Motorcycle manufacturers have for many years now installed electronic ignition systems in these two-wheelers. Such an ignition system has to send the right amount of voltage into the engine's combustion chamber at the right time. CDI ignition system is predominantly the ignition system installed in bikes today. In this article, we look at the signs to look out for when you suspect your motorcycle's CDI box is faulty. We will explore the tricks and methods you should use to restore a bad CDI. Let us look at how it functions first to appreciate why you must take a keen interest in your motorcycle's CDI ignition system. It is also referred to as the thyristor ignition in some quarters. The CDI system is very common in modern motorcycles and is also found in many 3-wheel motorcycles, some cars, and boats.

Moped cdi box problem

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Thanks in advance to any who can help me and sorry for my bad English. This is my story: I have a malaguiti f12 and one day when i'am rolling I noticed that my scooter stay accelerates a little bit when I stop acceleration stop adding gas and the performance is not that good and sometimes it's stuttering. I tried to decrease the idle nut to the minumum , but the problem still and after some days the scooter won't start anymore. So I tried to check the electricity and it was not working no spark at spark plug so I tried to change the CDI box and it work But after a week the problem returns and the CDI damaged another time And when I pick my scooter to the repair man and he says that they are no problem in your electronic circuit, but you have to change an original code box so my question is: Does the original CDI does fix this problem the original one in my country is not cheap at all? Does the CDI box problem cause the instability performance in my scooter? And do the CDI problem cause acceleration in my scooter?

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Once it is disconnected, set your multimeter to the ohms setting and touch the leads to the terminals on the coil. Oct 09, AM. Thanks Rick, I've tested the kill switch and it works as designed. There could be an issue with the fuel system, such as a clogged fuel filter or a bad fuel pump. We'd love to have you join the discussion, but first:. To test your CDI, you engage in both cold testing and hot testing procedures. Toggle Menu Close. The cdi units that have been bought are directly from Qlink. The spark plugs may be dirty or fouled. Oct 08, PM. To test the CDI box for an ATV, you use a multimeter to inspect the fuses , ignition switch, ignition trigger coil, electronic module, and check for loose wires. Edit: Replacing your harness is the ideal way of fixxing any electrical problems. If the scooter is just running rough, do check the spark though. If the reading is outside of this range, then the CDI box is most likely damaged and will need to be replaced.

The CDI is like a computer as it controls the engine of your scooter. It instructs the fuel injectors when and for how long they should spray. It also directs the spark plugs on how to perform especially when they have to fire.

The scooter felt sluggish, like it wouldn't fully open up, didn't run smooth. To bypass your CDI box, you clear your bench, remove the box, check resistance specifications, measure the primary and secondary oil resistance, and compare readings. These connectors will lay on the frame causing shorts. For the blue wire to the white wire, you check for a resistance reading between 77 and Here are the steps you need to follow: Remove the CDI box from your vehicle. Be careful not to try to address more than one problem at one time as there is almost always more than one thing left to fix on a china scoot. The previous owner was a moped rental place where my son worked. Identifying exactly where the problem lies helps you to easily make fixes or replacements and get your ignition systems up and running again. Before moving forward, you also need to take safety measures and protect yourself. Touch the red multimeter lead to each of the other terminals on the CDI box, one at a time. The bike only has miles on it. Check the tire pressure and adjust as needed. They almost always fail in a completely dead sort of way.