Reply To: Blackout engine temp Great British Handcrafted Motorcycles › Forums › Spitfire – Blackout › Blackout engine temp › Reply To: Blackout engine temp 14 September 2022 at 08:16 #12933 martin G10Member Hi, Gazz Is your temp sensor in the radiator or the top hose ? in traffic the radiator fan on my Six comes on at 93° regards martin