[blackcatbob]

I have the same experience when I got my R1200S, engine would virtually stall when I closed the throttle making gear down changes rough and general low speed riding a pain. I understand BMW sets the over run mixture extremely lean to get passed emission regulations, so lean in fact that the motor stalls if the throttle is close very quickly. Fine at high revs and speed but a right pain in town traffic at low revs.

I finally installed the Wunderlich Performance Controller and what a difference, even with just the the default set-up. Lower throttle response is much improved, gear changing smoother because I can now blip the throttle and get a response and the motor does not die on closed throttle over run. Pick up from low revs is better making the bike much more tractable around town.

This PC is quite expensive, but was easy to fit and has transformed the bike from a disappointment into a very nice road sports bike which I am very happy with. Pity the bureaucrats stop BMW getting it right from the start!