We run this setup in a 2011 300 and 2012 300
0-7000 elevation with no issues. Crisp bottom and clean running
Needle N2ZJ I find them for a 2011 KTM 300 XC
Clip second position down from the top
Main 168
Idle 38
Air screw 1 3/4 out
2011 has a #7 slide and 2012 has a #8 don't notice a difference between the two.
50-1 ratio with Amsoil Dominator.
The 2011 Has an S3 head with the highest compression insert.
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