I have never been around these water cooled bikes, this was my daughter´s ex boyfriends and it was stored with fuel in the tank for two years, then he brought to my to repair. The fuelpump was frozeup and the price was to much for him and it has been setting for three more years i just found the pump at a price i could afford. But now it´s late night and i need to know about the fluids for cooling system if anyone could tell my about it would sure be thankful. My phone # 580-456-7689 Roff, Oklahoma or e-mail is ngelino@yahoo.com