Cdi vs coil

Discussion in 'General Questions' started by canalcat, Nov 9, 2015.

  1. canalcat

    canalcat Member

    What difference between Coil and Cdi? Are they the same? What do they Do and what do they Look like? Thank you Any Senior!!!

  2. crassius

    crassius Well-Known Member

    some CDIs connect through a coil to spark plug - these are rare

    most kits only have a coil on the stator of the magneto
  3. canalcat

    canalcat Member

    Thank you Crassius
  4. jaguar

    jaguar Well-Known Member

    the stator coil/magneto produces an AC voltage which powers the CDI. at the right time the CDI dumps a spike of voltage into the high voltage coil which amplifies it to produce a spike of thousands of volts going to the spark plug.
  5. dougsr.874

    dougsr.874 Active Member

    Isn't it DC voltage?????
  6. jaguar

    jaguar Well-Known Member

    the CDI converts the AC voltage to DC