Bought 2014 R3 roadster 200 miles ago from Triumph dealer and coolant light came on. Had a mechanic check issue after dealer told me it was because I rode on a hot day? Anyhow took bike to dealer to explain issue and show them that coolant was not at level handbook said and they sent me away stating all fluids are correctly aligned. Well it overheated and when cold and I opened the coolant cap smoke came out within 30 seconds. I had filled the coolant to between min and max as per handbook and after 2 miles coolant light came on and when I got home the reservoir was dry. My mechanic says it’s likely head gasket issue … dealer stated no issue …. Any thoughts from the forum at all?