Water leak
LC4 Supermotofor rideand on the way back nowwater started coming out of the over flow pipe,thats on the top of the radiator,and when i was clossing the throttle,and opening it back out,there was huge smoke coming from the exhaust,i stopped at a garage to top it up,and i got hel of a job to restart it,she was just smoking her head off,when the starter was turning,can someone tell me what,they reckon has gone on it,thank you,peter,sounds like you got an airlock in your cooling system somehow which has caused the engine to overheat, boil over and pop the head gasket.,,,