Hello all I have an 3 st1300 ex police bikes one day all three bike were parked under the shed of the funeral home (I use them to escort services) unbeknownst to me an employee left all three bike running which cause the one nearest the wall to run a little hot, it didn't overheat just 4 or 5 bars so I'm told. However I was told the rider rode it until it shut off which meant it ran super hot. The bike was allowed to cool down but from then on ran all the way up to hot but never over headed from my understanding. When I got back in town I drained the coolant that was left in it then I refilled with new coolant bled the system and boom for three days of riding everything ran fine no more than 3 marks on the Temp gauge. On day four it starts going up until it's flashing I shut it down. Now I do all kinds of tests, compression test shows left side is stronger than the right however no coolant is mixing with the oil, and I just can't stop this thing from running hot and suggestions