Wr250 Grey Wire Mod. THe kit will also tell you about the gray wire mod. what do

THe kit will also tell you about the gray wire mod. what do I do to the exhaust and airbox? thanks! Feb 20, 2008 · Yes, you have to rejet when you open up the air box. I need more power. I am considering doing the grey wire mod. Apr 26, 2004 · Well I want all I can get and is it possible to cut the gray wire without have the cam timing advanced. 1. There is only a black wire in the other half of the plug. Im gonna open up my air box on the side where the factory cut outs are but they left it solid. It looks like it is combined with other wires connected to a plug. thanks! I just bought a used wr450. Just wondering if anyone has gone back to or is still under WR cam specs with the grey wire mod. Jul 13, 2013 · I have not done the Grey wire mod yet, so was wondering if this could be part of the problem? ACV? My bikes airbox is opened up and has an FMF factory 4 exhaust pipe, so it's definately breathing better than stock. My next step is the grey wire. Thump on! WR250F Grey Wire Cut (in Red) and Uncut (in Blue) Low, Medium, and Full throttle tests with the throttle grip held steady. Is there any links sho I recently yz-timed my wr250 and that seemed to cure my upper mid-range flat spot. I know about all the timing map stuff but What will this do for actual seat of your pants performance. I've heard that before, but I don't quite know what it is or how to do one. Both the wires go into a connector, but only the grey wire with the black stripe comes out the other side. The Grey wire selects a WR map, which has the spark slightly retarded. I think my WR with the zero dollar mods was faster than my 250X with an R cam, jetting, R head , R piston and pipe. After digesting all the threads, I have seen something about the grey wire mod causing some kind of heat issue, but no mention of its affect on reliability. Leave the timing screw alone. It is essentially a new bike (the the plastics and paint on the frame don't have a scratch), it has a jd kit installed, uncorked, and grey wire mod. Apparently it switches the ignition timing map to something more aggressive. Other than that no changes. Nov 27, 2001 · It is narrow and doesnt get in the way. Oct 3, 2024 · Hey can someone please tell me how exactly to cut the grey wire and where it is, its a 2002 wr250f but not sure if its US or EU. thanks! Jan 26, 2009 · I want to open up my 2006 WR250f. Has anyone tried running the wr timing with this grey wire mod? Did that take care of th Jun 27, 2013 · All free mods Grey Wire is unplugged (tried that plugged in to) New Gas 91 Octane New spark Plug (according to him, maybe I should check) And he had the valves adjusted at a shop about a year ago Not sure what is going on with it, its all clean and starts easy just doesn't want to ride and almost dies when the throttle snaps. Install the thick Oring. I'm getting an 06 model. Does this mod hold for a WR250X? Feb 4, 2009 · Was trolling through YouTube and came across a thing called the grey wire mod. - Devon TRF Group Open Forum DTRF Facebook National TRF Forum Recent Posts Search 2008 Yamaha WR250F first start after uncorking mods RSWR450F 6. Notice how power tapers off with the Grey Wire connected. My mods probably don't suit you weekend dirt bikers----I did that for 30 years and have moved over to adventure riding now. Has anyone tried running the wr timing with this grey wire mod? Did that take care of th I did all the free mods but the gray wire and I rode the bike just to see if I wanted to go through the trouble of setting up a switch that would allow me to run it on or off depending on conditions. taking off the gray wiremore This is a video of how I removed the Gray Wire from my WR250. i do remember a while back someone saying something about the blue/white wire, but i can't remember what it does exactly. Remove the rubber plug and behind it should be a grey wire loop. This makes the bikes acceleration a bit softer thereby making the rear wheel less prone to spin and the bike generally more tractable. Oct 13, 2003 · All Activity Home Forums Dirt Bikes Make / Model Specific Yamaha Motorcycles WR250F/YZ250F/YZ250FX 2004 WR250f & grey wire mod Facebook Twitter Youtube Instagram Pinterest Newsletter 2008 WR250F. As I understand it, the YZ cam makes the bike "peak" faster in the upper RPM ranges at the expense of low RPM power. Thanks but I don't know if that's Frontline or backside of the wire. Its the grey wire that does the ignition mapping, and the sky blue that gives it a different air mapping i think or something like that. Also i'am not sure if it is a canadian model or an american modle. The “WRF” map retards the timing at the mid and upper RPM so that the bike will run with the stock baffle and throttle limiter installed. this is not my first WR. Did I do s Feb 25, 2025 · hey guys i want to cut the gray/grey wire on my 2002 wr250 but i havent found anyone who has told me exactly where it is… if someone coulf tell me where it is and how to get to it and which wire it is that would be great.

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