yz timeing foe a wr 426 help
Posted April 10, 2003 - 02:37 PM
Posted April 10, 2003 - 03:05 PM
This site is for the 250 but its all the same.
Posted April 10, 2003 - 05:15 PM
If you havn't already, I'd suggest you go to YZ jetting too. As far as the needle you may need, I can't help you on that unless your at 5K....
Posted April 11, 2003 - 06:25 AM
Motojunkie, the mods I did in my sig all helped it fly. They are pretty easy if you can take off a carb and use a drill and tap the hole (for BK mod). I can send you more info if you need it. Just PM me. I can even take some pics if you can get them through email. Of course, I haven't done YZ timing or YZ cam but there is information on that also. YZ timing is just a matter of moving your exhaust cam one tooth from what I've seen. My next mod will probably be a YZ needle but it runs so well now, I might wait a while.