so i have a friend with a 600 classic and it has a overheat problem. anyone have any suggestions on what it can be? gonna try flushing out the system but any other ideas would be great.
more info like is it pressureing up the antifreeze bottle and blowing some out?take off the cap and watch for bubbles which tells a head gasket also smell the exhaust if your losing antifreeeze will be every white and sweet smelling.also head gasket issues.may be as simple as thermostat sticking to,i assume you have made sure that it hasen't iced up the coolers under the tunnel!