What causes a Sears weed wacker to start and then stop in 3-5 seconds?

SOURCE: weed wacker

check the fuek lines for hole and leaks, check the fuel filter and clean if necessary. remove the carbuerator and inspect the gasket; it should be soft and flexible, if it seems hard or brittle replace it. clean the carb with carb cleaner sray (available at any local auto parts store) and compressed air. make sure you get inside the small fuel rail holes. if that doesn't work have the carb repaired at a service center or replaced.

SOURCE: Sears Weed Wacker Line trimmer trouble starting,

hi
how do u remove the head assy on 13" toro rimmer?

plz help

tx

SOURCE: weed wacker started and wacked some weeds then the

pull off string housing check that all parts are there. run machine and see if shaft is turning-- if it is then put housing back on sometimes I havent put the housing on properly. if shaft is not turning. then repair is needed. or just buy a new one. cost of repairs on this stuff is not worth the cost. unless it's a profesional grade machine..