Wouldn't you know it, but I pay my jack to ride practice at the speedway this morning, get in about 7 laps and the bike starts sputtering. It was cold and I had adjusted the screw earlier. I swear it was only 2.5 out. Anyway, suggest that if you're around 2.5 out and/or the screw starts to feel like it's turning easier than it should; turn it in some. I don't know if the spring got weak or the weight of the adjuster contributed to it backing out or not. Luckily the mechanic at my local shop was nice enough to hook me up with one so I could ride this weekend. The part that sucks is our track just re-opened after a month and a half off, reconfigured etc. Now I have to wait until next month for a sat practice again or hope it warms up at night a lot so I can go to regular practice.