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baseline 426 w/bk mod jetting?

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Posted by: sfc crash---------------------

converting to a WZ, i've cut the throttle stop, yz timed, bk mod, and have a biggun pipe with stock muffler unplugged. i've got to order a yz needle and jets, so i was wondering what a good baseline starting point is for jetting the '01 wr set up this way.thanks. btw i'm in il, so i'd imagine i'm at about sea level.



Posted by: vetwfo'er---------------------

Kinda late to be asking isn't it (everything is on order)??? You might try this:

158 MJ
160 MAJ
38 PJ
55 PAJ
60 SJ
EMM #4
1.5 FS

My bike has mods similar to you and this configuration works great for me.

vetwfo'er



Posted by: wayneo426---------------------

OBELN Needle Part # 5NL-14916-EN-00

If you want the main here it is:
168 Main #4MX-14943-91-00



Posted by: sfc crash---------------------

thanks, after i fix the riding mower so the wife can mow :confused: :confused: , i might actually get to work on the bike! between clearing timber, fixing jeeps,mowers,brush hogs, tilling gardens and cleaning garages, i think i might get this bike together by april 27.....2003! :confused:




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