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Brian M

The old grey wire question

24 posts in this topic

Should I unplug my grey wire or leave it? I tried to search before asking this question with no luck. Can any one help, and why? Thanks.

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If you do the throttle stop, you need to do the grey wire also as that allows the bike's timing to compensate for the increased fuel. Without it, you're kind of negating the benefit of the unrestricted throttle...SC

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I've read lots of threads on this subject. I know that the wire causes the timing to retard (12 or 14 degrees I think) after 1/2 throttle to help keep the noise down.

Then I read one thread saying that with the wire disconnected to be careful because the rev limiter no longer works.

Can anyone confirm for sure if this is true? :banghead:

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i'm also looking to unplug this grey wire, but was told there is no rev limiter if i do so... is there any1 that can say 4 sure it will be ok..?

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Another confirmation here on the rev limiter myth. Although, in some cases it has caused the bike to transport the rider to the magical land of Narnia where they are crowned Queen of the Sugarplum Fairies in the castle of the Gumdrop Forrest...I love old wive's tales, don't you :banghead: ...SC

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Thanks Rick and Clark

I can now sleep better knowing I blow my engine when I pin the throttle :lol::banghead: I'll meet you all in the wonderful world of zo :banghead:

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Another confirmation here on the rev limiter myth. Although, in some cases it has caused the bike to transport the rider to the magical land of Narnia where they are crowned Queen of the Sugarplum Fairies in the castle of the Gumdrop Forrest...I love old wive's tales, don't you :banghead: ...SC

Ah, you ruined it. I was going to contact "Mythbusters" from the Discovery Channel to check into it! :banghead:

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I also read where the grey wire is only a feature on US bikes. Can anyone confirm if my Australian 2001 WR400 has a grey wire that needs cutting?

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Do You Have To Cut It On The 03- 05 Wr450's Also??

I did on my 03 wr450 CA model

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Yah, 04 WR Kali model.

Under the tank, 6 pin socket-pull it apart. The gray wire is in the center location in the socket assembly. Use a paper clip to realease the terminal, fold it back and taped it up. :banghead:

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I also read where the grey wire is only a feature on US bikes. Can anyone confirm if my Australian 2001 WR400 has a grey wire that needs cutting?

I'v heard from an australian that your wr and also the european models have yzf mapping without cutting the gray wire but I'm not sure. On my year 2004 the gray wire is connected to the cdi unit but I havent "followed" it til the other end so I dont know if its connected to ground or not :banghead:

If anybody know for sure please let us know.

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