Ran mine for the first time today. It is a bit finicky getting it to idle with the clip on the bottom. But Jimbo warned me of this. The easy fix was to adjust my throttle return stop at the pedal so it idles around 2100 RPM. I may fool with it later but it's to dang hot out there right now. After running Box Stock clones for the last year, I must say, I was really impressed by the LO and my times were almost 1.5 seconds quicker around our 7/10 mile Asphalt Sprint course. Let me add, I also had to go down on rear tooth count by 3. With this, I was just beginning to hit the rev limiter at the end of our 700' back straight.