You're both right. I moved the clip up one notch...man, what a difference! I put in the NGK plug, got an accel 8mm plug wire that has RF shielding (no more speedo resetting), and noticed an immediate difference in the way it ran. It ran a lot smoother, way less vibration, throttle was very responsive, a lot quieter, and I topped out at 28 mph on flat ground. Now if only I could figure out where the rear wheel is rubbing....may need to have it trued since it's new. Should I take off the rear spocket before I bring it in? What gap would you suggest MB?