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Hi, I’m replacing the fuel lines in my weedeater blower/vac. This particilar carb has a primer bulb. Just to be sure, what lines go where? The bigger line went to the top of the carb next to the primer bulb (I think). The smaller line was directly underneath that, just below the primer bulb housing. Is the smaller line the one that gets the filter and is fed all the way to the bottom of the tank? And the larger one just enters the tank about a 1/2” or so right?
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The (clear) main fuel line with the filter (filter inside the fuel tank) goes to the bottom of the carburetor (or the elbow shaped nipple). The (clear) fuel intake line runs from the top of the carburetor (straight nipple) and goes to the short post on the back of the primer bulb.
3/32″ x 3/16″ 1/8″ x 3/16″ 1/8″ x 1/4″ .
Replacing the fuel hose on your vehicle is going to take time and patience, and it could require getting underneath the car. It`s also going to take the right tools for the job.
To help ensure that the trimmer line remains flexible and long-lasting, it should sit in water before use. Even newly bought trimmer lines that have been stored for a long time should be soaked in water for approximately 24 hours before being used.
The (clear) fuel intake line runs from the top of the carburetor (straight nipple) and goes to the short post on the back of the primer bulb. The return line (blue) comes from the long post on the back of the primer bulb and goes into the bottom of the fuel tank.
Most vehicles have rubber fuel hoses connecting the fuel pipes on the chassis to the fuel pump or carburetor on the engine. Rubber hoses are flexible and can be cut to length as required, but they have a tendency to perish over time and can rub through if not properly secured.
A typical fuel system

A single fuel pipe runs from the tank, under the floor of the car to a mechanical pump on the engine. The pump delivers fuel to the carburettor. Whenever you check fuel pipes, disconnect the battery to prevent stray sparks igniting petrol or petrol vapour.

Replacing the fuel line on your vehicle can take anywhere from two to six hours. Depending on your car`s make and model, it may be a complicated procedure that involves removing many components.

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