Xr250r 16012-kce-670 vs 16012-kce-771 needle

I bent my needle on my 1997 XR250R:bonk: when cleaning my carb.

When looking for a new one I notice no one seems to sell a jetting kit with a new needle - my first option.

Next I notice that 1996-99 and 2004 come with a 16012-KCE-670.

and the 2000 - 2003 come with a 16012-KCE-771.

any difference? leaner? richer? The 670 is like $15.00 more for some reason:foul:. Will the 771 work?

ANY HELP WOULD BE MUCH APPRECIATED:worthy:!

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