Remove carb take qtip and a very small quantity of toothpaste and clean needle seat and lightly clean the resilient tip of the needle. Wash out with hot water and repeat with carburetor cleaner replace if necessary the bowl gasket. Reset floatheight to fraction below level, do not apply pressure to needle tip with float while adjustment is made. Also check for gas inside float( pin hole) reinstall carb. Poor mans carb rebuild. Peace