ok let me start with facts:
2009 xt660x, dna stage 1 and 2 filters, kev mod.
evethign was hooked and runninggrait, jupingong on wheel but only until i took my bike to Yamaha mechanic for 10.000 km service. Interesting thing he already heard of you Kev

and he rely liked it. he did his service and hooked up bike to computer to find out that mixture wasn't good proportions... so he adjusted valve clearance (hopefully this is hows it sad on English)
now it feels and sounds kind of weird... im attachign 2 sound clip maybe someone can tell me is it supous to sound like that coz The engine sounds like somethin is skippin and has very strange unequal sound to me.
C1 is set to 30
and kevm od is like this :

http://dl.dropbox.com/u/123959/sound/s1.mp3
http://dl.dropbox.com/u/123959/sound/s2.mp3
any thoughts ?