K12R/S rough roll off from 6K and above...

doug.brown · Post by **doug.brown** » Tue Jun 20, 2006 11:43 pm

Anyone know of a fix/new code drop for the vibration on K12R/S engine roll off? it happens when rolling-off the throttle above about 6K RPM. According to at least one Brit magazine, BMW intentionally causes it as a result of engine s/w that reduces emmisions...

Bry · Post by **Bry** » Wed Jun 21, 2006 1:06 am

?

Can't say I've noticed that problem... do you know what revision software you have?

Bry

riceburner · Post by **riceburner** » Wed Jun 21, 2006 4:53 am

the emissions testing is done at "roughly" those revs so most manufacturers map the ECU to very lean fuel settings at that point.

doug.brown · Post by **doug.brown** » Wed Jun 21, 2006 2:09 pm

I don't know my s/w rev on my K12R, but all the magazines testing these K12 bikes mention the same problem, including a recent review on the K1200GT in Motorcyclist I think...