Hello guys I have a question there. I bought myself a Yamaha Aerox from the year 2002. The scooter drives well but only in cold condition and I am pretty sure what is wrong with the cooling. I drove the one longer distance or wanted to drive a longer distance with it, at the 8 km the sled went hot and did not want to go on anymore… the next morning she jumped immediately again. I disassembled the cylinder and it is just before eating r but what I discovered is that the thermostat was not there at the head and the carburettor heating was not connected but only bridged. Well now I have ordered a new cylinder kit a thermostat and a new water pump. Now to the question(s) the thermostat could have done what with it running hot, the thermostat and the carburettor heating is necessary at all and after I have installed the new parts and the problem is still there and it is again hot ß runs what could be the cause because I heard that the cooler can’t break much and it rarely breaks. Thanks already for the answers.