Fuel tank assembly and carb were both very easy to replace, but either I did something wrong replacing them or a replacement part is bad. Now the fuel won't flow when I pump the bubble. I hear air wheeze when I pump it. Did I get a bad carb or some gasket bad or something?
SOURCE: Replaced fuel lines and pressing the primer pump does not feed gasoline to the car.
Sounds like you have the fuel lines switched around. The fuel line closest to the primer bulb will be the shortest line. It only goes 1" or so into the tank. The other line will be the longest line, and sometimes the smallest in diameter of the two depending on the size of your trimmer, and must rest comfortably on the bottom of the tank.
Jim
SOURCE: I replaced the gas and air lines,cleaned the air
Hi i would recomend fitting a new diaphram kit to the carby and also replacing the filter mesh inside the carby.
SOURCE: Primer button on homelite gas trimmer
It's possibly the filter, can't help there. I would check for a split line or loose connection between the tank and bulb and even splits in the bulb itself.
SOURCE: replace fuel lines bubble will
This is an ongoing issue for users, and rightfully so. Small diameter line out of fuel tank (has filter in-tank on end) connects to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then pushes any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Years ago on 2-stroke trimmers, primers were not even used,...you choked the carb with a slide lever and gravity let fuel enter the carb from above...a few pulls, a "pop"...slide it off of choke and away you went.
If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank
SOURCE: Replaced the primer bulb and
Chances are the primer bulb is hooked up backwards, I did that once, made me feel pretty foolish.
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