Sounds to me that BMW have finally given up trying to get the Rotax EFI 650 thumpa to run reliably while/because meeting emission standards.![]()
There is a lot if mis information out there re the 650GS/X models and firmware, virtually all the firmware versions for the models are stable and they run well other than some releases in 2000/2001. There have been updates to cover specific problems and improve/standardize diagnostics and an upgrade to the later G650GS for EU5 emissions compliance. Too many owners/dealers though failed to check/update firmware revisions and/or use correct starting procedures so myths about firmware persist.
The 2013-15 BMS-E equipped models have had one firmware change for a hot start issue which was in part a compression release lever problem due some change in manufacture of that part. Now there is a second upgrade with the recall with stalling, the details are in the pdf's published at NHTSA and the problem does sound like a firmware routine which would be common to the Terra/Strada