carberator need to be check for dirt and cleaned,the fuel line for open crack.also the end of the fuel to be tight fitted, not loose. the breather hole is there for a purpus,if it want to release fuel thru the breather hole , let all the air out from the gas tank ,i had the simler problem.the gas is not getting to the carbertor. also check gas tank for dirt and clogged fuel line.
shadow_08, January 2011