My brother just purchased a 1986 GSXR 1100 that runs great but seems to overheat while sitting in traffic. I know that this model is air oil cooled and is prone to running hot if not moving. We where just recently on a ride and where stuck in traffic. The bike would stall and when we tried to restart it we found it difficult to do so. Does anyone have any suggestions on what the problem might be and what we could do to improve the cooling process on this bike?