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.

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. The little black box fails from heat. I read somewhere that as long as it is blue it doesn't have to be very strong.

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.

Jun 15, GMT The CDI in your scooter is linked to the ignition.

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.

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.

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.

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If the reading is outside of this range, then the coil is most likely damaged and will need to be replaced. I've tried to contact Mopeds but based on past experience I don't have a lot of confidence they will return my call or email. Leave a comment All comments are moderated before being published. That is not a doubt on what you say, I just wonder what could cause that and am always curious about how things work. The scooter felt sluggish, like it wouldn't fully open up, didn't run smooth. Testing a CDI box with a multimeter is a quick and easy way to see if it is working properly. These connectors will lay on the frame causing shorts. I don't know what that is or where to look and don't see anything on the wiring diagram to indicate an HR Coil. I have not seen where OP has tested the spark. As a side note the throttle adjustments are getting toward the end of range. This link scootdawg. This happen few more blocks then I gave up. Therefore, it is important to troubleshoot all potential causes before concluding that the CDI box is to blame. However, other potential causes of no spark include issues with the ignition coil, spark plug, or wiring.

I am getting a lot of people asking me, if their scooter has a restricted CDI, how to check if it is restricted and how to derestrict it. To get one thing straight: Only 50cc scooters have a restricted CDI. I have never heard of a bigger engine model with a restricted CDI which is being shipped like that if you know please leave a comment.

Dirt Bikes Dirt Bike Parts. If a problem exists, your multimeter gives off a beeping sound. This includes the spark plug wires, distributor cap, and rotor. Re: Mario yahoo. Before ordering a new one i would carefully inspect your current harness for a few common problems that vibrate : A Male and female connectors will have rubber sleeves that can "back" down the wire exposing the connectors. Here are some common problems and their solutions: The battery may be dead. The previous owner may have used the wrong plug and boot you need to keep the resister tip on the plug and use the corresponding boot. The air filter may be dirty and restrict airflow to the engine. New spark plug, the old one appeared brownish like everything was working correctly. Shop by Parts. Of course, before getting into your CDI, you want to be sure that there are problems with it.