Question about Poulan Pro Chain Saw 46cc 20"

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ETHANOL fuel has completely dissolved the fuel pick up line in my chainsaw, the only thing left is chunks of it and the filter. I looked at it and tried to find an exploded picture of one online. no luck..So my question is can it be replaced? If so tell me how please. Ethanol fuel has destroyed a few engines of mine.. including a $14,000 outboard engine Poulan, chainsaw model # PP4620AVHD

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Yes, anything can be fixed, well almost. I've had the same problem with small engines. Start by taking the plastics off, you should be able to find the rest of the fuel line that goes to the primer bulb. Then from the bulb to the carb. You need to the correct size fuel line and replace it and put on a new filter. Just remember, if it damaged the lines, the carb needs to be removed and soaked or replaced. To keep from going through this again I recommend the pre mix two cycle fuel, just make sure the ratio is correct, chainsaws are usually 50:1 and other small engines run 40:1

Posted on Aug 08, 2017

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recoil spring is broke. homedepot has a new one

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SOURCE: 2007 Dodge 3500 cummins diesel was filled with E85 ethanol

Just drain the tank and refill with diesel fuel. Hit the starter for a second and leave the key on for the fuel to prime. You may have to do this a couple times to get it to start. Run it down the highway at normal cruising speed for a while and it should be ok. I wouldn't worry about the injectors yet unless it doesn't recover on it's own.

Posted on Jul 09, 2009

mkh5094
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SOURCE: will 10% ethanol in gas hurt generator?

I wouldn't say the ethanol is the problem, but perhaps the brand of gasoline. I can tell you that many cars including my own run crappy on certain gasolines (even though all gasoline contains 10% ethanol), when they get older. For example I get horrible gas mileage on Exxon gas, while I get wonderful mileage on Shell or BP gas. Experiment with that a little and if there is no improvement you (or if your not sure how a shop that deals with generators can do it for you) can adjust the idle and check any filters that may be one the generator.

Posted on Jul 07, 2010

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SOURCE: 2004 Honda Metropolitan-runs , but jerking, and at

Time for a carb cleaning. The cheapest is to do the leg work yourself by taking off the carb. and tearing it down. Do not remove any security star screws as this is an indication of an injection molded gasket that cannot be purchased. Take it to a shop that has a sonic cleaner. My honda dealer does it for $25, and it will run like new again.

Posted on Aug 29, 2010

al_kupchella
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SOURCE: I have a Poulan 14"

Inside the fuel tank, there is a small flexible fuel line with a float (or sinker) attached. The float (or sinker) is supposed to keep the end of the fuel line submerged in the fuel. The float (or sinker) may be detached, or stuck, or it may be saturated and won't float (if it's the floating kind).
Good luck, Al K

Posted on May 20, 2011

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I have a husqvarna 435 chainsaw that will not stay running. Cold start it runs good for 1 minute then just shuts off. Starts again but will shut right off. Any suggestions?


The ethanol in gasoline softens fuel lines to the point they collapse.
Change the fuel lines and use non ethanol gasoline. [ Very expensive]

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Fuel line routing for ryobi,poulan and sears trimmers


hello sir, fuel line routing for ryobi,poulan trimmers, looking at machine from left side,front green line from tank to bottom of port on primmer bulb. rear line from tank which has filter inserted through tank with small white ring pushed up against tank & filter fittings, goes to port at bottom of carburetor.top line from primmer bulb goes to top port of carburetor. that is the way they go on.it is important to make sure you have the same fuel line I.D. and O.D. are very important! also if old line dissolved it will get in carburetor and clog ports & small screen inside.clean inside of carburetor with carburetor cleaner & air pressure. to get your parts and numbers ,go to mtd parts.arinet.com, parts,791-683398,fuel line assembly.hope this helps
.hello sir,routing fuel line for craftsman,homelite, trimmers,fuel tank over engine, looking at machine from rear, shall fuel line on left with filter attached goes to bottom port of carburetor fuel line from right side coming out of tank with inside tip attached goes to bottom port of primmer bulb,top line on primmer bulb goes to top port of carburetor fuel tank under engine,fuel line routing,looking at machine from left side, left fuel line coming out of tank(drain back only) goes to right side small port of primmer bulb, left side larger fuel line from primmer bulb to top port of carburetor fuel line coming out of tank (larger line) on the right side with filter attached goes to bottom port of carburetor when replacing fuel line it is very important to use the same ID and OD line,when the lines dissolve small pieces will get in the carburetor clogging small passages and screen,it is advisable that you clean out carburetor and use a new filter.hope this helps, DON'T FORGET THE 4 THUMBS UP,,,,any comments welcome,thank you.

on Feb 27, 2010 | Garden

1 Answer

Husqvarna 125 e gas edger problems with starting


Usually it is the fuel or fuel lines. Open the fuel tank and take a look at the fuel lines. Are they brittle and cracking? Replace the fuel lines and fuel filter. This should fix the problem. When you get it running, only use pre-package pre-mixed fuels. This fuel is Ethanol free and mixed with an FD rated oil.

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1 Answer

Buy new saw


What exactly is the problem? There should be a rubber "O" ring between the cap and tank. If you are using ethanol blended fuel, it may have dissolved, or turned to mush . In which case you should also check your fuel pick up line in the tank.

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1 Answer

HARD TO START THEN ACTS LIKE ITS STARVING FOR GAS. ALREADY REPLACED PLUGS, FULE FILTER AIR CLEANER.


Had problem like this check the graumet for fuel line pick up tube that goes in fuel tank if it is deteriorated losses vacuum check inside fuel lines put clear fuel filter if it dont stay above half full the line could be restricted if your not using no ethanol fuel and always premium non ethanol fuel . Other will make fuel lines i.d. shrink take pick up tube out of tank see if any black stuff on bottom of tank if so replace all lines pump clean tank rebuild carb buy only premium no ethanol gas

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1 Answer

McCullogh chainsaw- gas not being sucked into carb


Carb cleaned? Does that mean a full carb kit was put in? You can't do anything less with the lousy ethanol gas we have to deal with(try to find ethanol-free premium). If you're convinced your carb is 100%(I'm not), trace the fuel line back to your tank and make sure it doesn't have any leaks. Better yet, do a vacuum test on the line itself. Also make sure your fuel filter is completely clean.

Jun 20, 2013 | Garden

1 Answer

Will not stay running


Check the fuel line from the tank to carburetor. Ethanol fuel has caused many problems with fuel lines cracking, causing poor fuel pick-up issues. I'd start with replacing the fuel line and filter first. If you know the year of it (check serial number) go to partstree.com and it will give you a parts breakdown and ordering capabilities for this saw.

Sep 16, 2012 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Fuel line routing for craftsman chainsaw 358.350370


hello sir,routing fuel line for craftsman,homelite,ryobi,hedge and line trimmers,fuel tank under engine, looking at machine from rear, shall fuel line on left with filter attached goes to bottom port of carb, fuel line from right side coming out of tank with inside tip attached goes to bottom port of primmer bulb,top line on primmer bulb goes to top port of carb, fuel tank under engine,fuel line routing,looking at machine from left side, left fuel line coming out of tank(drain back only) goes to right side small port of primmer bulb, left side larger fuel line from primmer bulb to top port of carb, fuel line coming out of tank (larger line) on the right side with filter attached goes to bottom port of carb, when replacing fuel line it is very important to use the same ID and OD line the homelite takes a special line that is black in color and a bigger size,the bigger line is ID .08-OD140 small line ID3/32 X 3/16.when the lines dissolve small pieces will get in the carb clogging small passages and screen,it is advisable that you clean out carb,and use a new filter.hope this helps,any comments welcome,thank you. if the filter has broken off of the line half way that is where you will run out of fuel, hh

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1 Answer

KTM 950 adventurer S. Has been lying up in the garage for approx 1 1/2 years. Now it will start for a few seconds on the choke then cuts out. Will not start without the choke at all. When running on the...


Any chance there was any old fuel left in the tank when you started messing with it. Most fuels have ethanol blended into them. After about 2 months ethanol blended fuels go through a phase separation... meaning the ethanol separates from the fuel and starts eating it's way through just about anything made out of rubber. I had an old work chainsaw that sat with a tank full of fuel for about 2 years. When I picked it up the fuel filter was rattling around inside the tank ... the hose had completely dissolved. The short section of fuel line between the tank and carb was like putty. In your case, I would want to make sure all the old fuel was drained out of the lines before tearing into anything else.

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1 Answer

18 inch poulan wildthing doesn't want to start, doesn't seem to be getting fuel.


I suspect your fuel lines have failed, pretty common since use of ethanol in fuels. The IPL (exploded parts list) for your saw is the only detail for fuel line routing and it is sketchy at best. It does show components and part numbers. Find it here:
Poulan.com
http://www.ordertree.com/modelinfo/POULAN-WEED-EATER/75.59.html
The dash number of your serial number is the type.
Typical fuel system:
b57ab47.gif Fuel Line Replacement by SmallEng.com
http://www.youtube.com/watch?v=JrXpU70Hmi0
  • The hose in the tank with the filter on the free end connects directly to the carburetor input connection.
  • If the saw is equipped with a primer bulb, the output line from the carburetor connects to the suction side of the primer (once the bulb is collapsed it draws fuel from the tank through the carburetor to refill as it inflates).
  • The pressure side of the primer returns displaced fuel to the tank as it is depressed.
Take lots of notes and a few digital photographs to help with reassembly. HTH
Lou
Any fuel containing ethanol is not good with chainsaws. Mix what you expect to use within a few weeks. Anything over 1.5 months old use up in a 4 cycle engine.

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