Is the CDI box on a scooter good or bad?
One advantages of the CDI is that they are not sensitive to shunt resistance. The CDI box, however, does not give enough ignition efficiency because its spark duration is short. Every scooter owner or lover should know that CDI models are either AC or DC. These two types work differently.
What happens when a CDI box goes bad?
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.
Is there any way to test a CDI box?
The only real way to test your CDI box is to swap it out with another known good unit from the same year/make/model. Because of this, we recommend that you rule everything else out before replacing the CDI box. There are so many factors that can cause a CDI box to go out, which is why it’s the only product that we sell without a warranty.
Where does the CDI box amplify the signal?
The box amplifies the small signal generated from the spinning magnet located in front of the pickup coil in the stator, just before top dead center (TDC), when your fuel-air mixture is ignited. The box can’t generate continuous sparks.
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.
The only real way to test your CDI box is to swap it out with another known good unit from the same year/make/model. Because of this, we recommend that you rule everything else out before replacing the CDI box. There are so many factors that can cause a CDI box to go out, which is why it’s the only product that we sell without a warranty.
One advantages of the CDI is that they are not sensitive to shunt resistance. The CDI box, however, does not give enough ignition efficiency because its spark duration is short. Every scooter owner or lover should know that CDI models are either AC or DC. These two types work differently.
What is the complexity of a CDI box?
CDI’s complexity is in its circuitry, but its ancestors relied on clever mechanical systems to fire the coils. Springs, weights, cam lobes, and other simple machines worked together to deliver spark at the right time, even as revs rose.