I have read several threads on this topic and it seems there are alot of differing opinions. Today, I was riding some trails on my YZ400F and following a guy on a slow 4 wheeler. I dont know if we were not going fast enough to cool the radiators or if it is another problem. I would guess the first place to start is my radiator cap would you all agree? Arent the radiator caps on these bikes fairly universal? Couldnt I find a higher pressure cap? How would I know which one to buy? I read a thread about a guy that had my same bike and installed a radiator cap off of a KX500. Do I need to install an overflow bottle? I am running about 50/50 tap water and automotive antifreeze. The bike wont overheat on short rides, usually only when its ridden hard or really slow. Do the different types of coolant really help?
Thanks
Thanks