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Thread: XRR owners: anyone running aftermarket CDI or over rev box?

  1. #1
    Join Date
    Aug 2004
    Location
    Utah
    Posts
    2,672

    Default XRR owners: anyone running aftermarket CDI or over rev box?

    Been reading on about how certain XR400R years' CDIs will advance ignition curve to give the XRR more over rev and low/mid range.

    Anyone here running either aftermarket CDI (Big Gun, Pro Comm, Rick's) or XR400R?

    What I've found on the XR400R's oem cdi:
    if it has Number: 070000-2650 -its the earlier 96-97 model! (the one you want
    BUT if it has the Number 070000-2740 its the Later model which doesn't have the same timing advance and I believe its a lower rev-limiter.

    I'm hoping if you have an XR400R, you could look at the DENSO part number on your bike and tell me if it corresponds to any of the numbers and model years listed?
    2001 Yamaha TTR-150L
    2005 CRF450X
    1998 Buell White Lightning

  2. #2
    Join Date
    Mar 2009
    Posts
    110

    Default

    Quote Originally Posted by Michelangelo View Post
    Been reading on about how certain XR400R years' CDIs will advance ignition curve to give the XRR more over rev and low/mid range.

    Anyone here running either aftermarket CDI (Big Gun, Pro Comm, Rick's) or XR400R?

    What I've found on the XR400R's oem cdi:
    if it has Number: 070000-2650 -its the earlier 96-97 model! (the one you want
    BUT if it has the Number 070000-2740 its the Later model which doesn't have the same timing advance and I believe its a lower rev-limiter.

    I'm hoping if you have an XR400R, you could look at the DENSO part number on your bike and tell me if it corresponds to any of the numbers and model years listed?
    hey check ebay from time to time the xr650r model comes up for purchase my friend THAT IS THE CDI UNIT

  3. #3
    Join Date
    Aug 2004
    Location
    Utah
    Posts
    2,672

    Default

    Unfortunately it's not that simple. Consensus seems to be that the aftermarket CDI boxes are cheap knock-offs of the XR400R, and have proven to be unreliable at times. Not only that, you can't tell which ignition advance you are really getting. I've yet to see an OEM cdi from a Jap. mfg not work, whereas plenty of these aftermarket cdis have been found not to work when new-leaving guys out a cash load.
    2001 Yamaha TTR-150L
    2005 CRF450X
    1998 Buell White Lightning

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