Gray Wire Free Mod for '05 WR450F

8 replies to this topic
  • B-Rock

Posted December 13, 2005 - 07:32 AM


I was wondering that because I will be using my bike for mostly on-road riding (see the Thread "Lets say half Supermoto)..... I can hear the boo's already........... should I even bother with the gray wire mod?

Do I really want YZ timing if I am on the street and occasionally gone for long highway rides to visit outta town friends? :applause:

Let me know what ya think :ride:


  • baha

Posted December 13, 2005 - 08:15 AM


I don't think this si a issue on bikes sold outside of the US. Might er wrong and I use mine arond town as well!!!!!

  • tmckeown

Posted December 13, 2005 - 08:42 AM



I was at the dyno on monday and tested the difference with and without gray wire. Only difference was bit over horsepower on top, thats all.

Timo Mc

  • B-Rock

Posted December 13, 2005 - 10:46 AM


Actually my bike came from and all.


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  • scothran

Posted December 13, 2005 - 12:14 PM


I cut the grey wire and trimmed my throttle stop to yz length on my 05' WR450 and noticed a big difference. Before I did the mod the bike felt like a slug. I ride long distances sometime and it runs great.

  • Matty05

Posted December 13, 2005 - 11:24 PM


Actually my bike came from and all.


That's nothing to be proud of...................
Just get a vortex ignition. Plug and play baby!

  • WheelsUp

Posted December 14, 2005 - 12:30 AM


Cut it. No need for a toggle switch.
The grey wire retards the timing by some 30 degrees above 6000rpm.
It makes a difference.

YZ cam, you may or may not want it. I would, and felt NO loss of power in the bottom end. If anything, it smoothed out some of the dead spots in the powerband... it's now a very smooth, solid application of power from any RPM.

  • B-Rock

Posted December 14, 2005 - 01:58 PM


Sorry..... didnt know caring about the environment wasn't somthing to be proud of. :applause:

  • rich1167

Posted December 14, 2005 - 02:05 PM


I think they are all green sticker legal sold in the US. Anyway most of us remove all the stuff that makes it Green sticker legal.


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