you only use two keys when programming them from new and if you buy a new immobliser unit you will need both keys to do it.so what i would suggest is you buy a new non immobilised box which will just plug straight in where the old one is after taking it off.they are about £100 from a place called electrex also a company called pm tuning do it but it costs more and its the same thing.ok good luck for 2007. providing the speedfight is 50cc?
adam bike doctor, January 2007