opinions on that magic grey wire

[ch0g]

hey guys ?

i wanna know what everyone thinks about their grey wire experiences. some ppl say huge, others say none, let us know your setups ?

ch0g

[timvv51]

couldnt really tell a difference on my 03. Thing has more power than I need most of the time anyway.

[Endurordr]

This should be interesting. ?

[cruise]

i recon it made mine rev better more like my friends yz

[obermeyer]

No change I can tell

[wrooster]

guys,

just FYI

we studied the effects of the grey wire mod on the 250F:

http://www.thumperfaq.com/gray_wire2.htm

summary: on the 250F, it does indeed change the ignition mapping.

jim aka the wrooster

'01 wr250f

[5valve]

euro models come with grey disconnected

it must be some restriction (environment, power)

[Indy_WR450]

Grey wire mod really works. Just do it. ?

[thumpinTed]

I noticed that the motor revved up quicker from the mid to top and possibly gained a few hundred rpm before the rev limiter kicks in, which I try to avoid. I also heard the gray wire on US model WRs when disconnected gives an additional 5 deg of spark advance. A stock WR is only capeable of 50% throttle opening (the stop that is cut or a YZ throttle stop installed) wont need any more advance if the TPS value is maxed at 50% in stock corked exhaust trim. Then theres the exhaust cam timing WR OR YZ

[dirtr1der]

Did the grey and blue wire at the same time. Seems to get close to the limit much quicker now. Mostly from mid range rpm.

[purluvwr450]

Blue wire?

[Top]

Blue wire?

Ditto ??

Why can't a guy just clip the grey wire, try it out and see if there really is a diffrence? If he doesn't like it, just hook it back up? ?

[ch0g]

blue wire?

[Indy_WR450]

Sky blue wire needs to also be pulled to improve spark voltage during start up.

This is independant of the gery wire mod. ?

[Treebanger]

Revs quicker in the mid range!!!