Join Date: Feb 2011
Location: Middle of Nowhere, Utah
When adding coolant, did you have the front wheel up higher than the rear? If not, there may be an air bubble in the system not allowing water to flow. Based upon what you describe, this seems the most likely possibility. Did you also by chance replace the thermostat? It might be frozen partially shut, now allowing the coolant to flow fast enough for proper cooling.
2006 VN900 Classic LT - Red and Black
Stage III Stock Pipes - K&N Filter in Stock Box - Amsoil - 170/80 Kenda Kruz - Saddlemen Explorer - Willie & Max Windshield Bag - Mutazu Passenger Floor Boards - Shorai Heavy Duty Battery - Kawasaki Lowers - Black Universal Trunk mounted on Mutazu Rack - Osram 70/65w Plus 50