Jetting basline needed ........... Taffy?

3 replies to this topic
  • sledge_57

Posted April 12, 2002 - 08:12 PM


I need a place to start with jetting on my bike.

Bike is 2000 WR400 US model
No mods except 13t c/shaft sprocket
Alt. less than 1000ft

Probably going to do BK & Grey Wire when I start jetting.

I can't afford, at this time, to buy a bunch of different jets etc that I wont use so if anyone has a good baseline for a stone stock WR I'd greatly appreciate it.


  • Taffy

Posted April 12, 2002 - 10:05 PM


baseline jetting for what though sledge?

is it to keep the standard exhaust or to go YZ timing? just to improve standard jetting?


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  • sledge_57

Posted April 13, 2002 - 09:27 PM


Improve stock jetting, my wife isn't working at the moment so the only money I intend to spend is on jetting, will probably do grey wire and BK mod but nothing else for a while.

I'm generally pleased with the bike but I know the jetting could be a lot better than it is, even in stock form.


  • Taffy

Posted April 14, 2002 - 02:10 AM



i don't know much about the standard pipe and all that. you need a DRM needle with WR timing and also the PJ at 35 and the PAJ should be a 50.

DRM needle
35 PJ
50 PAJ

do the grey wire, BK mod, airbox lid off etc.

i'm HOPING this works for you.



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