Good afternoon y'all. I have a 96 Suzuki Intruder 1400 4 speed. I'm wondering what the top cruising speed would be. The highways around me are 75mph but traffic flows about 80-85ish. When I'm rolling at 80-85 the motor is screaming and I'm afraid I'm going to damage it. Nobody I know rides one with a 4 speed so I don't know if it's ok to run that fast for 2 or so hours at a time