white bros mufflers

3 replies to this topic
  • elmo426yz

Posted September 25, 2001 - 07:17 AM


Hey guys i have an 01 YZ426 with the stock head pipe and the pro meg muffler with 12 discs, i ride alot of enduro's i have the silencer core that white brothers sells, but no one seems to no what jets i should run. Hopefully you guys can help me out. Also i am looking for a head pipe for more low to mid range power. Thanks guys

  • Merfman

Posted September 25, 2001 - 10:17 AM


If you're running the E-Series, the documentation says
that 7 discs is approximately the same size hole as the
stock silencer. Given that, you should no need to change
your jetting assuming it was correct with the stock unit.

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  • #1_Hit-man

Posted September 25, 2001 - 01:37 PM


elmo426yz, If you buy a new header pipe, will you sell me your 2001 stock header? THANX! ~Hit-man~ yz426f@msn.com

00'YZ426F 00'XR50R LATER DAYS!!!

[This message has been edited by #1 Hit-man (edited September 25, 2001).]

  • Bill

Posted September 25, 2001 - 03:32 PM


For more low to mid, buy the tapered header. It's deisgn, is for what you ask.

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, de-octopussed (Thanks Clark) EKP #4, 50PJ, 175MJ, 100PAJ and 65 SJ at 500-1000' Thanks James Dean!

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