hi , i had the same problem on my speedfight 2 50 , i had to buy a new CDI unit a speacial 1 to bypass the imobiliser ( i got it on ebay) i pluged tht in and she went lol if u wnt any more info about ur bike , or any more questions , here is my email addresss mattphyallAKApigeon@hotmail.com also on windows live messenger
matt phyall, March 2009
