Primer bulb won't re-fill.

Did you pump the primer bulb to push the gas from the tank to the carb?

Initially release any clips by squeezing with a pliers and pushing back along the line. Lines can be prised off using a snipe nose pliers or flat blade screw driver, pushing on the edge of the line. Don't pull the lines which can stretch them.Two fuel lines leave the tank of a two stroke engine. The primer bulb sucks gas from the tank via the line with the filter on the end, gas returns to the tank via the other line without the filter. When you replace a line, to check whether they haven't been mixed up, fill the tank but leave the line without the filter above the level of the gas. When you push the primer bulb, gas should eventually squirt out the line without the filter. If the lines are mixed up, air bubbles will flow out of the filter and no gas out the other line.
For a pictorial guide and more info on troubleshooting 2-stroke engines and carburetors, see my guide here:

String Trimmer Won Work 2 Stroke Engine and Carburetor Troubleshooting

If there are two different size lines in the tank the smaller one is the main fuel line. The main fuel line will have the filter on the end of it in the tank and the filter should lay flat on the bottom of the tank. The main line will go directly to the carb on the fuel pump side. It is very difficult to describe and I dont have a way of giving a picture. If you have had the carb opened up the fuel pump side is the side that is mostly flat with holes and the dighram with the flaps.
The other nipple; usually more toward the center of the carb body, will go to the primer bulb. The primer bulb will have 2 different length nipples. The longer one is out to the tank, the shorter one is in from the carb. There is no need to have more than a half inch of line from the primer into the tank. when hooked up properly; as you press and release the primer bulb it will draw fuel up the main fuel line into the carb and fill the carb with fuel then from the carb to the primer bulb and fill the primer bulb with fuel then the excess fuel will be returned to the tank from the primer bulb.

be sure fuel filter is on the primary fuel line in the tank.check primer bulb and fuel lines.also check fuel tank cap.vented cap may be stopped up

that line should be longer, it contains the filter which is the pick up, and should rest inside the tank fully,, see if its possible to pull that line farther into the tank, its not going to start until the primer bulb fills

You can easily get a new primer bulb for it...most small engine repair shops will have what you need, and if you want, you can most likely snag one on Ebay....DON'T THROW IT AWAY, ok?

You can go to a small engine repair shop, parts shop or look on eBay and they should have the fuel lines you need. Not very expensive, about $1.00/foot for new Tygon lines. You are way overdue for replacing yours. The ethanol in the gas does a job on them.

drain fuel tank. keep depressing the primer bulb until it is clear. drain tank again. remove carb cover and disconnect lines one at a time. keep depressing primer bulb to get rid of excess gas. remove spark plug an turn engine in a position that the spark plug inlet is facing the floor, pull starter rope a few times to get rid of gas in the engine chamber.

Hi,
Check the primer bulb for cracks,it will not pump gas if it is torn or cracked. Then check line from bulb to gas tank to see if there connected or are broken.

the carb needs to be taken apart and cleaned out sometimes the screen gets blocked off from the fuel it gets crystalized or the pick up line from the tank is clogged im sure its the carb