have a 1600GTL I bought new , I have over 50k on it now. I have struggled with overheating issues from 5,000 miles on. I have been to three different dealerships and still have the issue. The fan has been replaced, the radiator blown out with both air and water. Both have helped but not stopped. It happens in stop and go traffic and in the mountains. My next service I will have the valves run and am thinking about having them do a radiator flush. Does anyone have any other ideas? it is the 2012 model . I love this bike and am planning on hitting the 100k mark with it.