Question about Echo Chain Saw. 18 in. 40.2 cc Gas Chain Saw CS-400-18C

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How do you hook up the fuel filter line inside the tank on a cs400

The line inside the tank came loose. I pulled on it too hard.

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From I see in the ipls your going to need to remove carburetor so you can have access the fuel line grommet. The fuel pickup appear to be fed through this to carburetor as one piece.

A very involved replacement for someone who never this before.

Posted on Apr 03, 2015

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If you go online and search for the drawings for that saw you will see that the fuel pipe enters the tank at the top through a grommet. You will have to pop out this and then pass the pipe through this after passing it up through the hole from inside, long nosed pliers or tweezers will assist. Once you have that done stuff the grommet back into the hole and don't pUll it out again!!!!!!!!

Posted on Apr 03, 2015

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Posted on Jan 02, 2017

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1 Answer

Change the fuel suction hose and filter


By using a piece of wire with a hook on one end slightly bigger than the diameter of the fuel line, fish or hook the filter & fuel line out of the tank through the filler hole. then remove the filter from the end of the fuel line. Next let the fuel line fall back into the tank then pull the fuel line out of the tank from the outside. Then to replace it with a new line. It is quite a tight fit in the tank & can be a difficult to replace. This can be made a little easier if you cut the end of hose at a sharp angle then put it in the hole. If it is too tight to slide through the hole you may need to use a pair of long nose or bent pliers to pull it from the inside,pull it out the filler hole & cut the end off square then replace the filter on the end of the hose & let it slide back into the tank. It is probable a good idea to replace the return fuel line at the same time if it hose one fitted.

Oct 13, 2014 | Garden

1 Answer

How does a weadeater edger pe550 gas lines hook up inside of the gas tank?


I am not familiar with your brand of machine, BUT... many machines have similar fuel line setups. Here\'s what I know.



Most carburetors have built-in fuel pumps that suck fuel from the tank. As the fuel pumps generally suck more fuel than the engine needs, there is a "fuel RETURN line" from the carb back to the fuel tank, which returns the excess fuel back to the tank. There is usually nothing attached to the end of this line inside the tank.



The "other" fuel line is from the tank TO the carb, and it usually has a tiny, weighted, fuel filter attached to a long piece of fuel line INSIDE the tank. This long, flexible, floppy piece of tubing allows fuel pickup regardless of how, what position, the machine is held.



The purpose for this set-up is threefold:



  1. The filter, of course, is to keep "trash" out of the fuel system and,


  2. The "long" fuel line inside the tank is to allow the filter/pick-up end of the fuel line to move around in order to pick up fuel from ALL points inside the tank,and


  3. The weight is to forcefully "carry" the filter/pick-up intake to the low point ["bottom"] of the tank regardless of the orientation of the machine and fuel tank!!!


On the machines that I replaced the fuel lines, to replace the suction line I had to use a longer than normal [when finished] length of line.



I first had to "fish" the filter, weight, and any nipples and or washers out of the tank.



  1. I then inserted the new line into the tank from outside through the small hose opening hole.


  2. To start, I put MUCH MORE [extra] line into the tank so that I could fish-out 5 or 6 inches thru the filler opening, allowing me to finish the connection of the filter, weight, nipple(s) and/or washers outside the tank where I had room to work!!!!!


  3. The use of nipples with washers expands the hose enough to keep the assembly from easily falling or pulling from the tank.


  4. Once all of the "in-tank" assembly was done, I then gently pulled the extra fuel line back out of the tank hole, thus pulling the weighted filter and connectors back into the tank. I left enough "loose" tubing inside the tank to allow the weighted fuel pick-up end to reach anywhere inside the tank.


  5. The final step was to route the line to the suction nipple on the carb, cut the line to proper length, and attach it over the carb suction/intake nipple.




Not being familiar with your machine, I can only hope this allows you to fix your machine! Good luck!!!!!

Jul 23, 2014 | Poulan WeedEater Hedge Trimmer 25cc Engine

1 Answer

Weedeater manuals


The diameter of the fuel lines are bigger then the holes in the fuel tank. Make sure u get the right diameter fuel line. The fuel lines are basically crimped by pressure. Sometimes its like there welded in place. There should be two fuel lines. One is short goes from carb to tank. When you use the primer bulb it takes fuel from tank through carb spits it back into tank. The longer one has the fuel filter on it. Empty all the gas from tank. Look inside of tank with a flashlight and try to locate the fuel filter. Take a piece of wire make hook on one end. Try to snag the fuel filter and pull out. Might as well replace filter while it is out. Take a pair of long nose pliers and grip the hose as close to the hole as possible. Try to pull with even pressure(no yanking). The lines may break because they could dry rotted. Make sure to hook lines back up the same way they came off carb.

Feb 01, 2014 | Weedeater Garden

1 Answer

Craftsman chainsaw fuel line and fuel filter


go to sears and purchase the fuel filter and fuel line kit for the chainsaw. in that kit will have a hook that you fish through the outside of the tank to the inside, you attach the new fuel line after attaching the fuel line to the fuel filter, to the hook, then pull it through the hole. disconnect the hook from the fuel line, cut the small piece off where the hook made the hole and attach to the carburetor. finish by pushing in the fuel filter inside the fuel tank. the kit will also have more detailed instructions and possibly with illustrations. if sears doesnt have the kit, check with a lawnmower repair shop.

Sep 19, 2012 | Craftsman Garden

1 Answer

How do I replace a broker fuel line? The one broken has a filter inside the tank.


Hi doug c197...

I will also include a fuel routing drawing.
Before you remove any fuel lines, make a drawing or take a picture of how the lines are connected to the tank for later reference.
You will need to remove all the old fuel lines and fuel filter out of the gas tank.
After you have all the fuel lines and filter removed.
You need a piece of wire...smaller diameter than the inside of the fuel line, insert the wire into the fuel line until it exits the fuel line then bend a hook on the end of the wire to hook over the fuel line.
You will lubricate about 1 inch of fuel line with a small amount of vasoline or light machine oil...
Now using your fingers or small needle nose pliers collapse the fuel line around the wire hook and insert it into the hole in the fuel tank.
After you have the fuel line in the tank, extend enough fuel line into the tank to exit the fill spout of the tank and remove the wire from the fuel line.
You will insert the new or cleaned fuel filter into the line and pull the fuel line to pull the filter just back into the tank.
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hunter19_46m_22.gif

Sep 24, 2011 | Garden

1 Answer

Have 2 gas lines dangling in gas tank, mcculloch 42c, 36cc, older, one line has filer other for primer????? or did it come disconnected


Hi perfecthelme...
Those are broken fuel lines your are seeing and a fuel filter inside of the tank
*******************************************************************************************
I will include a fuel routing drawing.
Before you remove any fuel lines, make a drawing or take a picture of how the lines are connected to the tank for later reference.
You will need to remove all the old fuel lines and fuel filter out of the gas tank.
Clean and remove all trash,broken pieces of fuel line,etc. from the fuel tank.
After you have all the fuel lines and filter removed.
You need a piece of wire...smaller diameter than the inside of the fuel line, insert the wire into the fuel line until it exits the fuel line then bend a hook on the end of the wire to hook over the fuel line.
You will lubricate about 1 inch of fuel line with a small amount of vasoline or light machine oil...
Now using your fingers or small needle nose pliers collapse the fuel line around the wire hook and insert it into the hole in the fuel tank.
After you have the fuel line in the tank, extend enough fuel line into the tank to exit the fill spout of the tank and remove the wire from the fuel line.
You will insert the new or cleaned fuel filter into the line and pull the fuel line to pull the filter just back into the tank.
Please take time to rate me
hunter19_46m_23.gif

Sep 24, 2011 | Garden

1 Answer

I'm trying to replace the primer bulb (no problem), the fuel and carberator lines. I can't figure out how to get the old lines out of the tank and how to get the new ones into the tank. I'm...


Hi ghutch...
I will also include a picture of the routing of the fuel lines.

Make a wire with a small hook in the end and reach into the fuel tank and grab the wire with the hook and pull the line and filter out of the tank.
Now is a good time to clean or replace the fuel filter.
After you have the fuel filter and fuel line removed from the fuel tank you will insert a wire into the fuel line and bend a small hook at the end over the new fuel line that your going to insert into the fuel tank,lubricate the outside of the fuel line (about an inch) with vasoline.
Now you will push the fuel line into the tank using your fingers to start the line in the hole and also pushing a the same time on the fuel line.
Once you have the fuel line in the tank move it to the fill hole and remove the wire from the inside of the fuel line and attach the filter and drop it back in the fuel tank.
Please take time to rate me thumbs up.
hunter19_46m_11.gif

Sep 15, 2011 | Garden

1 Answer

I HAVE TO REPLACE FUEL LINES ON A POULAN MODEL 2450 CHAIN SAW NOT SURE WHERE TO HOOK THE LINES TO AS THE OLD LINES WAS ROTTEN AND CAME OFF THE POSTS OR LOCATIONS WHERE THEY WERE HOOKED


Hi,

Sorry to hear of your predicament. It's upsetting but not that hard to fix.

You'll have to drain the gas out of the tank first and toss it if it isn't fresh. Remove the filler cap. Take the cover off the saw and possibly the air filter if it's in the way.
Turn the saw upside down and shake the fuel filter to the opening of the gas tank (it's inside the tank) and grab it with a needle nose pliers and pull it out. If the line was that bad, you'll want to replace the fuel filter also.
You'll need to get new fuel line, which is clear tubing. You'll need about 6-8 inches of tubing.
Attach the new line to the fuel filter and feed the line into the gas tank and through the hole in the bottom. Pull it all the through to the interior of the saw. Feed the line around to the small metal tube on the carburetor. Before you connect to the carb, cut the excess line off.
If your saw has a priming bulb, connect the line to the fuel entrance on the bulb.

I hope this helps. If it does, I'd appreciate a 4 thumbs up vote. Thanks,

Handie Andie

Apr 15, 2011 | Poulan Garden

1 Answer

How to install both fuel lines to fuel tank. I see they go in at the bottom of tank but also see that lines have to be pulled from inside of tank. What tool do you use for this? Is there special tool that...


The duck bill valve (vent) is usually attached to a hard plastic nipple that the hose attaches to (in the tank). To route the fuel lines through the holes in the fuel tank, take a scissors and cut a long angle on the line so that it goes from round to half round to a point within about an inch or two. With a tweezer, hemostat or long needle nose pliers, the line can be easily fed through the hole and then pulled through from the other side. Once you have the hose pulled through the tank, the tapered part can be cut off so it can be fit to the carb or primer line. If there is a primer/purge bulb, remember the fuel goes from the tank to the carb to the purge bulb then back into the tank.

Apr 11, 2017 | Poulan Garden

2 Answers

Loose Fuel Line In the Gas Tank


hi rhopdo

try to find the spark plug near the muffler(exhaust)
check where is the hole from the gas tank, connect the fuel line to the carb.

yours savumihai71

Dec 01, 2008 | McCulloch 16 In 4.5 Hp Electric Chainsaw...

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