Question about Poulan Pro 25hht 25cc 22" Gas Hedge Trimmer

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The two lines that run from the fuel pumping bulb on the carburator to the back of the fuel tank have nothing attached to them inside the tank. I found what appears to be a fuel filter and a disintegrating piece of fuel line inside the tank. I'm wondering what parts I need to fix this. This is a Poulan Pro 25 hht

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Posted on Jan 02, 2017

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SOURCE: How do I install fuel lines on a poulan chain saw

The smaller line comes from the fuel filter in the tank to the nipple on the side of the carb with the cover w/ 1large screw in the center, the other small line goes from the other nipple on the carb to the primer bulb, the larger line goes from the other nipple on the primer bulb back to the tank, and only gets pushed in about 1/2-3/4" into the tank. Hope this helps.

Posted on Apr 30, 2009

  • 1 Answer

SOURCE: poulan te 450 cxl fuel lines need routed correctly

Other line is just left open like to send gas back from the carb.

Posted on Jul 15, 2009

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SOURCE: String trimmer, fuel lines disintegrated, I need routing.

The Walbro has two connections on it for the fuel line. My Walbro has one connection on the side of the idle screw and main fuel adjusting screw. This connection hooks up to the suction side of the primer bulb. Usually the shorter stem. (You actually **** fuel through the carb instead of pushing it through.) On the other side of the carb is the other hook up. It draws fuel from the tank. This line will connect to the side of the tank that has the filter. The other side of the tank is your return and it hooks to the other connection on the primer bulb. Usually the longer stem.

Posted on Apr 19, 2010

  • 20 Answers

SOURCE: Poulan PPB200. There are

The small one has the fuel filter. The other one is the return line to the tank. The return line is larger and usually have a fitting at the end of the hose and is inside the tank. Thread the new line ( large hose ) Through the hole on the right side. Thread until you can pull it out the filler hole. Install the fitting on the hose and pull it back up until the fitting hits the roof of the fuel tank (on inside of tank ) then that hose goes to the short fitting on the primer bulb. Then thread the small hose through the left hole going into the tank and pull it out the filler hole until you can install the fuel filter. Install fuel filter and pull it back until the filter rests on the edge of the filler hole. That hose goes to the right side of the carburetor. This is if you have a walbro carb. Zama also uses the right side for this hose. Hope my explanation helps. I'm working on one as well.

Posted on Oct 16, 2010

kel1guy2002
  • 3740 Answers

SOURCE: need diagram of fuel lines

There are 7 different types of the 1950 model (types 1 - 7) and it came with one of these 2 carbs Walbro or Zama. The carbs are different as are the fuel line connections for each one.
Although this video is for the promer bulb you can see the routing of the fuel lines.
http://www.ereplacementparts.com/article/4262/How_to_Replace_a_Primer_Bulb.html

You will have one line from the fuel tank connecting to primer bulb the 2nd line going to the carb. If you connect it backward it does not pump fuel into the carb.

Kelly
(FYI Types 1 - 5 all have the same fuel line routing.)

Posted on Apr 12, 2011

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2 fuel lines broke 1 from tank 1 from primer bulb. Line from back of tank to back of carb still there. Which lines go where?


The line that is still there is a return to the tank. The other line out of the tank has a filter on it inside the tank. this goes first to the pump then into the carb. Go buy new fuel line for all of it and replace them. The line still attached is the return. The pick up line goes to one side of primer bulb or other. Connect to bulb and pump bulb. if it pumps fuel out of the tank connect the other side of bulb to carb. If not reverse line and try pumping again. If no fuel flow, bulb or check valve may be defective. Depending on the model you can probably buy new carb, pump, and fuel lines for less than $40.

Dec 06, 2015 | McCulloch Garden

3 Answers

It was running after a carb re-build. now my bulb isn't pulling gas when i pump it


The bulb and/or fuel lines could have a small hole in them, losing vacuum, introducing air into the fuel system and causing problem. First off, check inside the fuel tank and make sure the fuel filter is attatched to fuel line. This is a common place for the line to break and if it does, it floats, introducing LOTS of air and a malfunctioning purge/primer bulb. When you depress the bulb, the vacuum created actually allows gas to Flow to the carburetor as it is pushing any air/old gas back to the fuel tank. So, in summary. Carefully check the condition of ALL of the fuel lines ,fuel filter and the bulb itself. If they are dry, non-flexible, or cracked, they need to be replaced.

Sep 16, 2011 | Poulan Garden

1 Answer

Put a new carburator on and don't know how to hook


Hi janemueller...

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.
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Jun 15, 2011 | Poulan Garden

1 Answer

I need a routing of the fuel lines from filter to, primer-in, primer-out, to carburator, out of carburator, back to tank. this is on a poulan chainsaw, 2550. Mod 952-05138. please respond.MARRY CHRISTMAS.


There are two holes in the fuel tank, it does not matter which line goes to which hole. The lines should run as follows: One line from the tank should have a filter on it, connect this line to the primer bulb and put a mark on it with a sharpie. Another line should run from the bulb to the carb, and the last should run from the carb back into the tank. After they are all in place, pump the bulb and watch the gas in the marked line. If gas is flowing from the tank through the marked line into the bulb and on to the carb you are done. If gas is flowing towards the tank in the marked line or not at all reverse the two lines on the bulb and you're done.

Dec 17, 2010 | Poulan Garden

1 Answer

The gas line for the in-gas filter corroded. Does it go to the pump bulb or carburator and how far down do both lines go?


The longest, and sometimes smaller in diameter of the two fuel lines, goes from the carburetor to the bottom of the tank. Leave enough slack in this line so that the filter that attaches to the end will rest comfortably at the bottom of the tank.

The other fuel line goes from the primer bulb to just inside the tank, (about an inch). make sure that you get the right size fuel lines. The plastic coupling goes on the end of this line, inside the tank. This keeps the line from pulling out of the tank.

(HINT): When feeding the lines through the tank holes, cut the lines at an angle. They will feed much easier into the holes. You can than cut them off square, once you know that you have enough to work with.

If you need further assistance, just let me know.

Jim

Sep 03, 2010 | Ryobi Cultivator

1 Answer

I Need Diagram of Fuel Line Hookups For a Poulan 2075 Gas Chainsaw. I Have Two Lines Coming From Primer, Two Coming From Fuel Tank, and Two coming From Carburator.


The line at the rear of the fuel tank with the fuel filter is the main feed line to the carburetor and connects to the upper nipple. The lower nipple on the carburetor goes to one of the primer ports, and the other primer port goes back to the tank, which has no filter on the tank end. On the primer port, it is cut and try--remove the tank return connection and leave loose. Place the main fuel line on to one of the primer ports and try to pump fuel into it with several pumps.Make sure the filter in the tank is not plugged. If nothing, shift the line to the other port of the primer and try pumping again. When successful, remove the main fuel line and return it to the upper carburetor port. Run a new line from the lower carburetor port to the active primer port and try to pump fuel again. If it won't pump fuel, reverse the two connections at the carburetor and try to pump again. If still nothing, there is trouble within the carburetor which should be cleaned with spray carburetor cleaner and maybe re-kitted. When you can finally pump fuel through the carburetor, then attach the tank return line to the open port on the primer bulb. Hope fully, the engine should run at this point. Hope this helps!

Jun 19, 2010 | Garden

1 Answer

Fuel lines question. From the filter to the carburator Were do I place that line?. There are two conections One at the top side with a black nipple and one on the side of the carburetor , How can I...


The fuel line from the tank that has the filter on the inside end is the main fuel line and should go near the top of the carburetor. The primer connection goes to the lower connection. Remove the tank side line from the primer bulb and leave loose. If the bulb is working in the proper direction, it will pull fuel from the carburetor and into the primer (and normally expel the excess back into the tank). Once the bulb is filling correctly, re-attach the return line to the bulb. Try to start the engine. If ok, it should run. Hope this helps!

Apr 20, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Primer pump rotten need replacement show parts page


The hoses run through a hole into the gas tank, they are fitted with a filter inside the tank. Drain the tank, and manipulate the hose end to where you can grab it throught he filler hole, Remove the filter, run new gas lines into the tank and through the filler hole to replace the filter, reattach to the carburator. The primer bulb should have 4 small screws attaching it to the carburator. Remove the screws, place in new primer bulb, and you should be back to trimming asap.

Jul 06, 2009 | Garden

1 Answer

The filter in the gas tank came off.


The filter should only fit in the end of one of the lines (probably the larger diameter one) The smaller line usually goes from the tank to the primer bulb and the larger one goes to the carburator. The filter just sticks in the end of the fuel line.

Jul 01, 2009 | Poulan Featherlite Gas Blower, with Low...

1 Answer

Need manuel to show how gas lines are run to carb. & pump bulb


HOW TO CHANGE FUEL LINE ON McCULL0UGH 2014 CHAIN SAWS.

I have successfully changed the input fuel line by purchasing Tygon tubing from a local lawn equipment dealer. I did not see the box he cut this from, but the tubing I bought measures 0.190" outside diameter. I gave him a piece of the old tubing and he matched it up. A 18 inch piece cost me $1.19.

The routing of the fuel line involves three pieces, one piece from the fuel priming bulb to the carburator is 3 inches long, a piece from the fuel priming bulb to the gas tank is about 4 inches long and the piece from the fuel tank is about 7 inches long. The priming bulb sucks air and fuel from the carburator and dumps it back into the gas tank. Therefore, when you press this repeatedly, gasoline will eventually appear in the bulb when the gas line to the carburator is full of fuel. The bulb may not completely fill, there will always be a little air in the bulb.

The fuel line in has a filter on the end within the fuel tank. If you find this has broken off, as I did, you have to turn the tank upside down and shake the filter and any pieces of broken fuel line out of the tank.

Replacing the fuel lines within the carburator compartment is easy if you remove the carburator first. To work on this you must remove the two screws holding the carburator to the engine. You may need to use a small screw Torx driver, although on my chainsaw, there was also a long straight slot on the head. The line from the priming pump to the carburator goes to the left hand line on the carburetor (as viewing from the top with the blade extending away from you. The input line will go onto the right line on the carburator.

The two lines into the fuel tank are located in the middle of the tank left to right and one about 1/2" above the other. The upper hole is for the fuel intake line. The fuel line passes through this hole and a second hole visible within the tank fill hole.
This was the trickiest hose to replace. How I did it was to use a piece of #12 copper electrical wire stripped out of its insulation. This was fed through the 7-inch Tygon tubing piece until it emerged from the far end. I also found it necessary to put a bull nose end on the Tygon tubing in order to get it to feed into the tank hole visible from the tank fill hole. Why? I don't know, but after 20 minutes of trying to feed the hose (both naked and with the electrical wire inside) into that second hole, I gave it a bull nose on the tubing by careful cutting with sharp scissors and using a sanding block. Perhaps McCullough has a special tool to do this, but a call to their 800 number could not get a knowlegible answer from the parts person.

After the Tygon tubing shows up in the tank fill hole, I pulled it further with needle nose pliers and was able to pull the copper wire back out of the tubing. I then cut the bull nose lead I put on the Tygon tube and installed the filter onto it. I found that a little oil on the nozzle and the carburator lines makes the tubing easier to slip on. The stuff the filter and Tygon tubing back into the tank fill hole and towards the front end of the tank so that it drops into the bottom portion of the tank. After attaching the intake line to the carburator, use the needle nose pliers to pull excess line into the tank.


Reassemble the carburator to the engine and you'll be good for another 10 years of happy chainsawing!

Apr 01, 2009 | McCulloch 16 In 4.5 Hp Electric Chainsaw...

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