Hi all,as the title suggests I am having coolant issues on my 5th gen. Symtoms; after an hours ride to work the coolant has expanded into the expansion tank,but when it cools down It doesnt return into the radiators. It goes from lower fill level to upper level.So maybe 100ml? I put on a new (non honda) radiator cap.Same result. So far I have put pressure into the overflow tube (about 16psi)and found a few weepy hoses due to loose hose clamps.Still same result next ride. I transfer coolant back to the radiators and there seems to be no loss of coolant. Next step I found a faulty thermostat(stuck open) and of course more loose hose clamps on the thermostat housing. After installing new honda thermostat, result the same next ride. Bike is not over heating. Spark plugs look like a nice tan colour. Bike is actually running really well. It sounds like I still have an air leak somewhere?However it seems to be very hard to see. No coolant in the oil.However I have only just changed it. Bike has 100k on it. Has anyone else had the same symtoms? I am running out of ideas. Cheers.