Help with my 01WR 426
Posted July 10, 2001 - 02:39 PM
Posted July 10, 2001 - 04:13 PM
That bike shouldn't run like a dog @ all!! I ran mine w/ whole stock pipe & stock jetting w/ all the mods, clip on slot # 3, and the bike still ripped,runs alot better w/ new WB pipe though......Tim
Posted July 10, 2001 - 04:17 PM
Posted July 10, 2001 - 04:23 PM
Posted July 10, 2001 - 04:37 PM
Posted July 11, 2001 - 04:46 AM
Posted July 11, 2001 - 05:00 AM
Definitely take the cover and and check the alignment marks. I bet it's incorrect!
Posted July 11, 2001 - 10:33 AM
Posted July 11, 2001 - 12:47 PM
Posted July 13, 2001 - 07:48 AM
Posted July 13, 2001 - 01:10 PM
[This message has been edited by James Dean (edited 07-13-2001).]
Posted July 13, 2001 - 02:27 PM
Posted July 17, 2001 - 01:16 PM
Posted July 18, 2001 - 07:39 AM
Posted July 18, 2001 - 07:57 AM
I hesitated changing my timing to YZ because I suck at trail riding. I grew up riding the wide open spaces of California.
I did however make the change (thanks Mike C, Kevin, Mike M and Nick) I also went to the "E" series needle at the same time.
My feeling is the bike is easier to ride in the tight stuff. It doesn't make huge power from the very bottom, keep in mind I have the tapered header which is supposed to enhance low RPM HP. It certainly makes more than enough power for anything I encountered at Tower City and the power from the middle to the top is AWESOME
99 WR400f, YZ timed, MX-Tech suspension, Scotts steering damper, White Bros E-Series (12 discs), tapered header and a/f. Kouba T-handle for the fuel screw. Works Connection billet throttle tube and frame guards. Cycra Pro-Bend, triple clamp mount handguards. Thumper Racing rad guards, Renthal Jimmy Button highs, YZ Tank and IMS seat, YZ number plate, odo removed, EKP, 48PJ, 175MJ at 500-1000' Thanks James Dean!
Posted July 18, 2001 - 09:36 PM
My feeling with the bike now is that it has plenty of low grunt if you give it a good twist from low RPM, but is very well behaved running in 1st gear with little or no throttle. The weak part of the band seems to be the mid, I have a hard time getting the wheel up if I am in mid to high RPM and whack it. I hae a 172 main and will stick a 180 in it for this weekend and see how that works. May be I just need to shift sooner.
Posted July 18, 2001 - 05:13 PM
Posted July 18, 2001 - 05:32 PM
It's my understanding that the jetting requirements are different for a YZ timed and WR timed bike. You may want to search the subject.
I wanted to try the "E" series needle because of it's aggressive nature but, was told that the "E" needle and YZ timing worked best in combination. So that's what I did, changed the jetting and timing at the same time. You may not have to change the needle but, you may want to, if you want this type of power delivery.
Like I said, it still has good power at the bottom, just a little softer/smoother and the mid to high, it barks like a big dog The bike wheelied often before but now, I have to think about how much throttle I apply in the mid range or the front wheel jumps up The bike also revs quicker and makes the doubles out of corners easier.
Give it a shot, you won't be disappointed
Posted July 19, 2001 - 05:59 AM