I have 30.5cc engine after I rebuild it I start it with choke and it start right up, after 10 min I shut it off and let it cool but after that it doesnt start. I tried to replace the plug to a new one and it still doesnt start.
after few days I start it without any problem.
Its happend a lot of times and I dont know why.
maybe the carb is broken ? because it start only in the first time with choke and there is little fuel leak in the buttom of the carb.
It is ruixing carb (maybe replace to walbro 668 ?)
Thank you,