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Have craftman brush wacker 31cc, 18inch, model 316.795001, need help with routing of fuel lines from gas tank to primer bubble and to carb.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 91 Answers

SOURCE: gas runs out of carburator throat.motor runs fine

clean your carb one of the floats is stuck. or you have a loose gas line that could be tightened with a hose clamp.

Posted on Mar 29, 2009

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SOURCE: gas not getting to carb. Blew out all lines gas, new gas filter

fuel line cracked in shroud just fixed one just like it check fuel line from filter to carb

Posted on Apr 08, 2009

  • 376 Answers

SOURCE: not getting enough gas to the carb have to run choke 3/4 engaged

Sounds like a restriction in your carb, not getting enough gas. I would clean out the carb again.

Posted on May 23, 2009

mowerman1857
  • 389 Answers

SOURCE: 20 hp 42

Check to see if your fuel solenoid on the bottom of the carburetor is working. To do this, turn the key on and off a couple of times and listen for a "clicking" sound or with someone else turning the key, hold the solenoid between your thumb and fingers and see if you "feel" it clicking on and off

Posted on Sep 20, 2009

  • 124 Answers

SOURCE: model no. 31as6fef729 544332 ser.no.11235B80204

This is a good time to remind everyone that you should not leave fuel in equipment that is not used on a very regular basis. More than likely your carburetor is gummed up from the old fuel. This can happen in less than 30 days much less 2 years.
To properly clean a carburetor you need to remove the carburetor and purchase the correct kit for the rebuild. Disassemble the
carburetor carefully making notes where each part goes. Once you have the carburetor disassembled clean it by soaking it in carburetor cleaner for a few hours. Use anned aerosol automotive carb spray cleaner to fill a small glass jar with enough cleaner to submerge the carburetor. Use a jar with a metal lid so you can gently agitate the solution occasionally to make the process more effective. You need to allow the carburetor to soak as long as it needs to remove all visible deposits. After the carburetor is cleaned allow it to dry and reassemble.

Posted on Sep 20, 2009

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1 Answer

Craftman 32cc model 358795560.From the fuel tank to the primer to the carb.Which line go where.


Hi glen11234...

Normally the big line will be the line the fuel filter is connected to inside of the tank.
The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Please take time to rate me

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I have a 2250 Poulan. The fuel lines have been removed. Is this the correct routing for the fuel line? Starting at the filter in the tank,will the line go to the bottom of the carb.? Then the line goes out...


Is there a fix for bar oil running out of the saw all the time until the tank is empty?


there is bad oil line repalce it.

Is this the correct routing for the fuel line? Starting at the filter in the tank,will the line go to the bottom of the carb.? Then the line goes out at the top of the carb. to the primer\'s suction side? Then out of the primer to the fuel tank? This route the primer pulls gas through the carb. Does it make any difference which hole in the tank the lines go to?

YES that correct

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1 Answer

No gas getting from the gas tank to the carb. replaced hoses and filter already. can not even draw gas with primer button.


You either need a new primer bulb (leaking air) or you have the fuel lines routed wrong. Here is the correct fuel line routing just in case:
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. Again, on the primer bulb, the longer nipple has a line going directly from it to the tank. The shorter nipple on the bub has a line from it going to the metering chamber side of the carb.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

Oct 04, 2010 | Craftsman Convertible 25cc. Gas Line...

1 Answer

Trying to replace the fuel line and the primer hose both were rotted off not sure what goes where on my poulan pro ppb200 31cc string trimmer there are two lines into the tank the primer wont fill i have...


The smaller line is connected to the fuel filter in the tank and goes on the carb body opposite the end with the hole in the cover. A larger diameter line coming out of the tank is the fuel return line and has the little connector on it just inside the tank to hold it in place there
It goes on the carb body (if primer is on carb) by the bulb.
If there is an external bulb...the small line is the same...there would be a larger line going from the carb body (nearest the end with a hole in the cover) to the smaller nipple on the primer bulb. A third larger diameter line would be connected to the larger nipple on the primer bulb and running to the little nylon connector inside the tank. This is the fuel return line and the smaller diameter line is of course the fuel supply line.

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Which fuel line "port/inlet" on the Walbro wt-380 goes to the fuel tank? It's on a Craftsman 25cc Gas "Weed Wacker" Line Trimmer purchased in 2002. It has Walbro WT-380 carburetor with external primer...


Usually the line with the filter on it that comes from the tank goes to carb. inlet first which is most likely close to the bottom side of the carb.nearest to the engine,then the outlet or return line on the carb.goes to the inlet side of the primer and the outlet side of the primer goes back to the tank. The primer draws fuel through the carb to the primer to the tank if its not? then correct the line connections until it does

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I was given a 31cc craftsmen grass trimmer that starts but won't stay running.When I took it apart it has 2 lines coming from the gas tank.One goes to a primer bulb then the carb and the other line has...


The basics of the fuel line on these and many 2 cycle engines is this, one line from the tank goes to the primer bulb and the other from the tank is the return line from the carburetor. There should be another from the primer to the carb. The primer pushes fuel into the carb and any excess flows through the carb and back into the tank.

I hope this helps.

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1 Answer

Craftsman Brush Wacker routing of fuel lines Model 358-795200 Was laying in bottom of top mount gas tank


Use new fuel line. There should be two things (besides fuel line) in the fuel tank. The small line has a (1) fuel filter attached and is routed to the lower outlet on the carb. This is the fuel supply line. Make sure there are a few inches of it inside the tank. (say enough to reach other side of tank). The larger line should have a (2) nylon connector inside the tank holding it. The connector stays right at the tank hole. That larger line goes to the closest outlet on the purge bulb. The other fitting on the purge bulb should have a larger line that connects to the upper fitting on the carb.
Feed enough length of fuel line thru tank holes to pull them out where cap is to put on the filter and nylon connector...then pull them back thru. WD-40 will aid in this procedure or any light oil.

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1 Answer

Fuel line routing yard machine 31cc cultivator 21A - 120R000


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Most 2 cycle engines are basically the same. The primer button has two lines coming from it. Gas is actually s.ucked thru the carb and not pushed thru when you prime it. Take a look at the sketch I provided and hopefully you will get yours running again.58fe8f0.jpg

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Putting fuel line on right on ryobi 725r 15'' 31cc weedeater


Typical fuel line routing is:

One line (the one with the fuel filter in the end of it) comes out of the fuel tank2.gif and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of line goes from the top fitting on primer bulb to top fitting on the carburator. Hope this helped and best wishes.

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