YZ400F Jetting

CRboy167

Sponsoring Member
Jan 18, 2000
101
0
I just bought a 98 YZ400F and the person I bought the bike from changed the jetting and I want to put it back to stock and then try to adjust it from there. Its running lean now. I live in the Chicago area and that not that far above sea level. So if anyone has the jetting lined out that would be a great help. Thanks for any help
 

Gary B.

~SPONSOR~
Apr 17, 2000
684
0
Check the FMF website. They used to have all kinds of jetting info there (including stock).
 

CRboy167

Sponsoring Member
Jan 18, 2000
101
0
Thank to all for the information!!! The FMF webpage had the information. Thanks again!!!!!
 
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