I have a 1999 CBR 1100XX with less than 7k, I am the third owner, have own it for the last past 3-4 years. always an issue with the F1 light. Here recently with the bike just idling for about 5-10 minutes, it shut off as if the engine kill switch was actuated. Since then it turns over and will not start. So far I have checked out everything according to the manual and I have went beyond that. The latest checks revealed fuel getting to the injectors but was not going any further. I checked power to the injectors( all is well) along with spec fuel pressure. There is no more the issue with the F1 light coding after it last cleared. The crank sensor and all electrical components have checked out good, I even did a continuity check from the injector(s) ground back to the ECM, it is good. I have come to the conclusion after running as long as it have with the F1 light intermitting, it has finally shut the ECM ground for the injectors down. 99-2000 is the only available ECM for that model, if one is found, it is a used one. I would rather go aftermarket ECM/ECU/Computer because of the ability to adjust accordingly, has anyone found or used an aftermarket ECM/ECU/Computer that they have successfully integrated into their existing factory wiring of the 99-2000 Honda CBR1100XX with success?