I have posted here in the past about occasional throttle sticking problems. Never could find the problem. This morning on the way to work it got real sticky, so at lunch I went out to take a look. In order see if the throttle bodies were sticking, I reached behind each one and pushed up on the pulleys.
DO NOT DO THIS!
The resulting slack allowed the right side cable to come off the splitter pulley. The pulley is buried under the tank where one cannot easily get to it. I unbolted the tank and raised the back, but having never taken the tank off, I was not ready to mess with the pump connections in the parking lot at work . As a result, I rode home with the right cylinder at idle for 25 miles. I will pull the tank this weekend and fix it.
I was OK on the freeway until traffic cleared as the R1200R will max out at about 60 with one cylinder. I was very lucky it was the right side that came undone, because the left side has the throttle position sensor and that is needed to run. I would have been spending the afternoon fixing it the parking lot.
(Don, I forgot to add 2009 R1200R to the main title, feel free to do so)