wr400 CDI

1 reply to this topic
  • Andrea

Posted June 08, 2004 - 09:41 AM


i have a question, C.D.I. UNIT ASSY is same as yz400 and wr400 or is different?

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  • martis_d

Posted June 09, 2004 - 02:15 AM


Well dude the only thing different is one grey wire witch runs to earth. I have cut it and placed a switch on the bars. the only thing it does is changes the ignition advance curve from wr mode to yz mode. this is a popular mod to make, along with the yz cam timing, i done both at once and had no problems at all

Marcus in OZ

99 WR400F


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