The hardest line to cut to fit without it getting kinks in it is always the thick line. Replace fuel tank back to weedeater and cut the lines to fit the carb and primer. You want the lines to flop around with gravity so that its able to find the fuel when you twist the weedeater when using. Pull the line back thru about 1 inch from the filler neck. Attach the filter to the thin line and the breather valve to the thicker line. Pull about a inch out for each line from the fuel hole and cut the line fluch again. When you can not work the lines in anymore by hand then you need the plier to fish them tru the tank. Its easier by cutting the ends at a 45 degree and put a dap of grease to help insert the new lines. Feed the new lines from the bottom of the tank making sure you put the thin line in the small hole and the thicker line into the bigger hole. You will need a long pair of needle nose pliers also. You may need to take the fuel tank off for easier excess but usually they are held in by two bolts. I would draw a diagram of the line and how they are attached before taking off the remaining fuel lines of the carb/primer bulb. You can buy the fuel line kit at home depot for $3.00 to $5.00 depending on what brands that store carries. That line feeds directly into the tank also and has a breather valve attached to the end when inside the tank. The thicker line is your return line which goes from the carb if it has the primer bulb built into the carb or to the external primer bulb if not attached to the carb. You should have one thin line which is your fuel line that goes from the carb to (Inside the fuel tank) and attached to the filter. This is because the fuel line and the return line are a one piece unit. The mot I have spent so far fixing one is $20 to replace a bad carb and its fuel lines. I am getting alot of good weedeaters at the salvage yards for $5 each and its not costing me much to fix these things now. You can buy that tool on the websites that I have mentioned before. First start by adjusting the low adjustment to where it just stays running without dying out on you.Īfter that, adjust the high adjustment untill you get the running speed you are looking for while you are holding the throttle open. The problem is the carb needs to be adjusted. Then when you do touch it, it slows down or dies out when you think you are giving it gas. I dont know if anyone here has had a problem with there small machines, but when you start it, it sounds like you have the fuel trigger pulled all the way back even when your not touching it. If the carb has a built in primer, the fuel line closest to the primer bulb is your fuel return back to the fuel tank while the other fuel line is your main fuel feed.Ī few of these carbs you will need a special tool that cost about $5-$8 to adjust the carb since the adjustment screws will not allow you to use a regular flat head screw driver. I have not worked on chain-saws or gas blowers yet but I guess it would be the same since it is a small engine.įor those small engines like weedeaters, chain saws, blowers and ect. I hope this helps some for those who are tinkering with their weed-eaters at home. Definately need a long pair of needle nose pliers to pull those lines in thru the tank. Oh, getting those rubber hoses into the tank is a pain in the ass and a little time comsuming. This is a breather valve so you dont want it submerged in fuel when priming the carb. This line should be about 1/4" to 1" below the fuel cap hole. Now that thick line from the tank is connected to the big connector on the primer bulb base. The thick line inside the tank should have a breather nipple attached to it. Now you need about 3" of small fuel line which will go from the top connector of the carb to the small inlet connector on the primer bulb base. Now that same line goes from the tank to the bottom connector on the carb. Replace the line back into the tank just like that because you want the fuel filter/line to flop around inside the tank. Pull out about 1" of fuel line from the fuel cap opening and attach filter. When replacing the thin line, it connects to the filter inside the tank. The thin line is your fuel feed while the thick one is your fuel return/breather. The weed-eater has a thick line and a thin line both coming from the fuel tank. The fuel lines on the carb may be a little confusing so I will explain the lines and how they hook up. Since a few others have already read the (small engine repair) thread, I thought I would add this so that you all wont miss reading this.
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