if the carb is OK chack the piston because the same thag happened to me and the good thang about the piston going out is you can increase the boar and get a little more hp out of the moter
should i incress the boar and if i do how much hp will i gain an is thare a way to stop over heatin or runnig hott and people to tak the self mixing tank of and mix it my self should i