hello i have an aerox 100cc bike with a 70cc engine i got it as a project got it all ready for m.o.t it was running fine so i rode it down for m.o.t i got near m.o.t station and the bike blew so i got a new piston and got the barrel hored out so i set off again and i got round the corner from m.o.t place and it went again... i have not looked at the bike as yet but just wondering what could be the cause i have a temperature sensor fitted but there are no wires to connect to it. the bike is not leaking water its currently running: malossi 70cc kit dellorto 17.5mm carb ( think its a 72 jet ) ( chocolate brown in colour ) uprated clutch malossi multivar anyone have any ideas what could be wrong or where to start...i asked the guy at garage to check autolube and water pump
What other stuff is on it ? Any air in the system ? is the pump working ? are you runnin the kit in ? or pinning it ?
yeah i was running the kit in was just taking it steady my friend said he checked the water pump and it was ok but i am getting the garage to check it aswell as the autolube what else do you want to know?
open the cap where you put the antifreez in and let it run like this for few minutes if there was any i should come out
update been into the garage today he said piston seems fine the bike has over heated its overheated so bad its melted the temperature sensor on the top. he said to get new top end gasket and hes going to check water pump
