jetting for elevation change

[notsed]

hi all, my current set up is fmf hi rev pipes, +4 timing, no air box. running 280 mains, needle on the middle clip, 25 pilot at 600ft. im going to alberta which is roughly 4000ft what should i be at to get it close before i go, temps are going to be about the same with a lil less humidity? any help would be great thanks.

[06specialedition]

hi all, my current set up is fmf hi rev pipes, +4 timing, no air box. running 280 mains, needle on the middle clip, 25 pilot at 600ft. im going to alberta which is roughly 4000ft what should i be at to get it close before i go, temps are going to be about the same with a lil less humidity? any help would be great thanks.

 

I would drop your mains 1-2 sizes and go from there. Here at 5000ft most bikes like the needle second notch from the blunt end.

 

You should be pretty close at 260-270 mains, needles on middle or second from top, and leave your 25 pilots in.