99 WR 400 Mods
Posted March 15, 2005 - 10:06 AM
I did a couple of free mods including taking out the air box cover, and grinding down the throttle stop. I want to know more about the little grey wire that everyone keeps talking about. I found the infamous wire under the seat, well I think it the right wire. My question is what do I do whith that little wire, and in return what will it do to my bike, I want the good and the bad.
Also it it really worth playing with the cams to set it to YZ timing? Any other tips I need to know about? What should I be aware of other than having to change the oil every other ride?
Thanks all input will be greatly appreciated.
Posted March 15, 2005 - 10:38 AM
Posted March 15, 2005 - 11:33 AM
I have heard its as easy as grounding it to the frame. Is that true?
You do not need to ground it to the frame. I've heard some guys just cut the wire.....I personally pulled the plug out of the socket( and taped it) where it goes into the CDI unit.
A couple of other mods I did .....de-octopus the carbuerator (eliminating all the plumbing that they did on the choke side of the carb).
YZ timing on the exhaust cam.
I also modified the accelerator pump (using the wheel collar mod).
James Now mod which is basically a homemade Power Now mod on the intake horn of the carb.
These are the cheap and easy mods to do to the motor. This coupled with countless others related to the suspension and handling.
Good luck with your new toy....sounds like you got a great deal!
Posted March 15, 2005 - 12:41 PM
Posted March 15, 2005 - 02:45 PM
Furthermore, if you are going to do this mod I would think you want to go ahead and advance the exhaust cam one tooth as explained on other threads(http://motoman393.th...ech/yztime.html ). This should get the bike to rev up through the low to mid rmps faster and cleaner.
I suprised nobody else has responded to this. There are a great many experts in this forum who know alot more than I, but that is the way I understand it. I also have 99 WR400 and have not done the mod yet. I do a lot of trail riding and the response and gearing seem to work very well for me, but I can't leave good enough alone and will likely do them in the near future.
Posted March 15, 2005 - 07:54 PM
Posted March 16, 2005 - 10:54 AM