I'm not sure what the x-over is for it but I run the LTR needle in both our bikes with 48 pilot and 180 mains. The older bikes seem to like that set-up in this area.
Do a search or look at the jetting sticky, I think the needle is a common Yamaha part but can't remember.
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jeff
'00 XC250 (mine)
LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion.
'04 EC250 (the kids)
(he can do his own mods haha!)
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