Can anyone help? I have a Zero 3 which was running fine, then I pulled the clutch in and it just died. Have not been able to start it since, have a spark but it seems weak. Would be grateful for any help. I bought the bike from a friend a couple of weeks ago and they had no problems. Also does anyone know where I can go to practice in northants, this is my first trial bike and I'm not very confident yet, also cost a consideration as I am 14.