If you have a primer bulb, you will have three hoses, one from the fuel tank ( will have a fuel filter on the other end in the tank ) this will conect to the main feed nipple on the carb ( closest to the pump cover held with one single philips screw on the carb ) the second hose runs from the nipple closest to the metering cover on the carb, to the suction nipple on the primer bulb, the third runs from the pressure side of the bulb, back into the fuel tank. Just remember that the bulb pulls fuel from the carb and back to the tank, not the other way round, this will just flood the carb.
Husqvarna man, December 2009
