CDI - How to change stock spark plug wire

Discussion in '2-Stroke Engines' started by grummy, Aug 3, 2008.

  1. grummy

    grummy Member

    Hi guys,

    Just wonderin on how to replace the cdi stock spark plug wire with more reliable one (copper core). Is it ok just to pull the wire out? or should we open the CDI box?

    A step by step picture will be appreciated.


  2. Aussie_Glenn

    Aussie_Glenn Member

    Gday Grummy,
    Don't try to open the CDI box. You cant - I learnt the hard way.
    The wire just screws out. It's just screwed into an upside down screw in the CDI box.

    I replaced mine with a Bosch distributor lead. Works a treat.

    Sorry - got no pics.


    BTW - Welcome to MBc
  3. grummy

    grummy Member

  4. relaxxx

    relaxxx Member

    I moved my CDI upside down under the gas tank about 1.5 inches away from the spark plug. Instead of a wire I just have a 3K ohm resistor with leads wrapped around spark plug and CDI screw. Then insulated with electrical tape.
  5. jboisclair

    jboisclair Member

    edit:Oops just found what i was looking for
  6. pedalpower

    pedalpower Member

    Napa is my friend. they have 7mm metallic plug cable for .38/ft and even had ngk plug in stock.
  7. grummy

    grummy Member

    CDI fix, now it's time to replace the stock spark plug - with NGK B 6L
    What is the best gap size for this one?