basic question on JD

Hi guys, hi JD,

one dumb question...what is the benefit of a JD Kit over a different setting with Keihin parts???

In my case, the EXC 525 is way too lean.......I put a richer jet needle from Keihin in, and the bike runs fine!!!, educate me and tell me what would be the advantage of a JD kit in this case! How is this advantage technically achieved?

Any input is appreciated!


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