Originally Posted by biknut
If it doesn't do it at 15 mph and up, my guess is it's chain snatch. It's caused by going too slow with clutch engaged. My bike does it at about 11 mph and lower.
That's what I was thinking too. Going too slow with too little throttle makes the bike jump and jerk. Not sure about the chain snatch though.
No ones had that symptom??
My bikes do that too, some worse than others, but it mellows out after the pads and motor break in a bit. I usually run the stock 44's that come with the kits, it'd be worse with a smaller sprocket, speed wise I mean.
It's just a quirk. Pedal faster before you let the clutch out.