The infamous Gray wire..Need more info on location

12 replies to this topic
  • paparick33

Posted April 06, 2003 - 07:33 AM


Still not entirely sure on which wire to pull out???

Is there info on this in the service manual???

  • HaremScarem

Posted April 06, 2003 - 08:56 AM


under tank towards front right side, 2 wires in connector,1 black and 1 grey

  • paparick33

Posted April 06, 2003 - 11:56 AM


Thanx man..i found it (only freakin gray wire under there, can't believe it took me so long).

Next the heck do you get the wire out????

  • ThumperWR450F

Posted April 06, 2003 - 01:15 PM


2 wires 1 black 1 grey? i thought it was in a 6 wire connector.

  • HaremScarem

Posted April 06, 2003 - 01:45 PM


I know the 02 426's have a 2 pin connector. 1 wire black and one grey, which are in line with the CDI unit. The black is connected to ground with the ignition coil and the grey is a return to the CDI. The six pin connector on 02's have only five wires and no grey conductor.

I should have asked which year bike he had before responding. Hope I caused no trouble :)

  • HighPlainsWR

Posted April 06, 2003 - 05:07 PM


Yeah I got confused on this last night. The WR450 has a 6 pin connector and the grey wire is in the middle on one side. has a WR450 site giving tips on the grey wire (WR450 project bike). The site has a great picture of the WR450 connector in question. Even the shop manual confuses it even more, it shows the grey wire going to ground all by itself - not the case.

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  • paparick33

Posted April 07, 2003 - 04:13 AM


No guys it was my fault for not saying which bike i have. It is a 02 WR426, and i did find the 2-wire connection. Thanks for the help on it, but i still can't get the wire out of the connector. I know you shoudn't cut it, but it's a task trying to get it out.

  • HaremScarem

Posted April 07, 2003 - 04:15 AM


AHHHH Just cut it :)

  • jchantzWR400F

Posted April 07, 2003 - 11:28 AM


Want to do grey wire mod on mine. Where and what to look for on my 99WR400F?

  • h20ski

Posted April 07, 2003 - 03:54 PM


Do the 01 WR426's have the grey wire? If so where is it?

  • MN_Kevin

Posted April 07, 2003 - 04:07 PM


I cut the sob since I have no desire to have my bike run crappy.

  • 426Woodsguy

Posted April 08, 2003 - 05:18 AM


I'm with you Waterski, Where is it on the 01 WR426?
I thought my bike ran great, am I missing out? :)

  • firngn

Posted April 08, 2003 - 08:04 AM


Removed the grey wire on my 03' wr450 yesterday. Only grey wire in connector of 6 under tank. Pulled the wire out of connector by lifting release tab with small screw driver. What a difference. Of course I rejetted and cut the throttle stop at the same time but the bike is much more powerful now. :)


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