Any chance you can give a bit more info on that kit. The present 6 Sigma site doesn't list these kits as far as I can see. Resurrecting my '84 XT600. Good vid-hope you're enjoying the bike!
Hey, It was OK, but I never fully felt it was right, whether that was because of there needle height to otherwise. I ended up switching to Ninja 250 carbs and have been tinkering with them on my TT600. I think if you were keeping the airbag and just running a different exhaust maybe the 6 sigma kit would be OK but I found with my ram air filters they struggled to cope once the second carb came in....bloody YDIS carbs