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The saw only runs for a short time when I squirt gas into the spark plug hole. The book says that indicates a plugged fuel line.How do I unclog a fuel line in a Poulan PP4620AV chain saw ?

Posted by Anonymous on

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  • Master
  • 2,069 Answers

If you left gas in it for a year or so. You gotta take the Carb off and clean it. Guarenteed that the ethanol gas ruined the carb

Posted on Dec 24, 2014

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  • 2 Answers

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Posted on Jan 02, 2017

Fog Horn
  • 17 Answers

SOURCE: Have a Poulan Gas Powered Chain Saw, I haven't started in 10 yrs.

Not used in 10 years. Was there gas left in the tank? If so the carb is likely gummed up and may need to be taken apart and soaked in "Gunk" solvent and a new kit installed.

Posted on May 26, 2009

  • 15 Answers

SOURCE: I have a Benchmark chain saw - replaced brittle fuel lines

sounds like your clunk has come free from fuel line or it is stuck at top of fuel tank. i would empty tank and see if clunk is free by giving the saw a good shake if you cant here the rattel of the clunk you have found the problem PS clunk is a weight attached to the end of your fuel line in tank it makes the line stay at the bottom of the tank

Posted on Sep 06, 2009

  • 15 Answers

SOURCE: Saw will start an run short period and stop.Only

If it is a old saw it sounds like your engine seals are failing. when a engine seal fails it allows air in past the crank upsetting your fuel mixture You could try to richin the fuel mixture by turning the screw marked H anticlockwise a quarter at a time untill it runs Ps to set (h) screw to factory, screw it in til it stops then unscrew it 1 & 1/2 turns

Posted on Sep 25, 2009

dontbother10
  • 2220 Answers

SOURCE: have craftsman chain saw, runs ok for a few

The plugged vent gets my vote. Loosen the fuel cap when it starts to starve.

All Poulan IPLs (exploded parts list) are here:
Poulan.com
http://www.ordertree.com/modelinfo/POULAN-WEED-EATER/75.59.html
Find your model, what little fuel system detail there is can be found on it. HTH
Lou

Posted on Oct 04, 2009

  • 4088 Answers

SOURCE: poulan saw wont run

Clean the muffler spark arrestor screen and check the cylinder port for carbon build-up at the upper edge. Try presetting both carburetor H and L adjustments (from lightly CW stops) 1-1/2 turns CCW each. Start the engine and allow to warm up. Pull the throttle wide open and adjust H CW until the engine speed increases, but still 4-stroking. Correct setting is when the engine 4-strokes, but immediately 2-strokes when cutting. Allow to idle and adjust L for smoother running, yet allows the engine to 'follow the throttle'. Set idle speed to keep the engine running, but doesn't try to move the chain. You may have to look closer at your carburetor if the above doesn't help. Go to:
http://www.drystacked.com
for an excellent article (but poor pix) on Walbro carburetors, but related to most all 2-stroke carburetors. Hope this helps!

Posted on Feb 24, 2010

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Spec vin ecu specs


If it turns, then the battery is OK. Either spark plugs are not firing in proper order (wrong firing order), no power to spark plugs, or no fuel because of fuel restrictions (dirty fuel filter). Inspect the air filter to ascertain its not clogged air. If you smell gas, then you saturated the spark plugs, which is why it refuses to run.
Let it sit for half hour to let spark plugs dry. Inspect to ascertain its not dirty spark plugs, which will also prevent engine from running. After ascertaining its proper firing order, spark plugs are clean, and there's power to distributor cap, ascertain there's fuel in fuel lines by squirting half second (short squirt) of starting fluid into air filter. Close the air filter housing to trap flammable starting fluid gas. Turn engine without giving throttle. Let starting fluid be ignited by spark plugs. If it won't start, then spark plugs are not firing to ignite starting fluid gas. If it starts briefly, but won't run when you give throttle, but catches when a 2nd person squirts more starting fluid into air filter just before engine stalls, then its a fuel restriction issue or no fuel in fuel lines.

Nov 29, 2013 | Cars & Trucks

1 Answer

Wont start


Remove the spark plug and check for spark. If snappy and blue with a fresh plug gapped at 0.020", then pour a little fuel mix into the plug hole and try for start. If it pops or runs for a few seconds, then look for fuel delivery problems. Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other problems. If no help, remove the carburetor, disassemble and clean the interior with spray carburetor cleaner. Inspect the diaphragm in the lower chamber for flexibility with no holes or cracks. Make sure the fuel is fresh and properly mixed with a modern synthetic saw oil. Be sure to shake the container thoroughly each time time just before filling the tank to prevent oil starvation. Hope this helps!

Jan 14, 2011 | Poulan Wild Thing 2375 18" Gas Chain Saw...

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Cannot start husq 340 have spark but no combustion even if put gas in spark plug hole. have new spark plug


The engine may be flooded--take the plug out, turn the saw upside down, and pull the starter rapidly a few times with the throttle full on. If flooded, a fuel spray will likely come out of the plug hole. Make sure the ignition is OFF when doing this--you don't need a fuel fire! Is the spark at the plug blue and snappy (plug gap set to 0.020")? Replace the plug and see if it will run. Make sure the air filter is clean. Hope this helps!

Oct 16, 2010 | Husqvarna Craftsman 36cc, 16 In. Gas Chain...

1 Answer

After starting and operating the chainsaw for a short time, it dies and I can't get it started again. Suggestions?


Engines require 3 things. Spark, compression and fuel. And chainsaw need 2-cycle oil mixed with the gas.

Assuming you have the right oil-gas mixture and a fresh batch of gas, and you didn't leave old gas in the saw all summer long since last November.

-Take off the dirty air filter and see if saw starts without filter. Do not run without putting in new filter.
-Check exhaust port for mud dobber home or screen clogged with carbon and dirt
-See if saw fires up after squirting WD-40 directly into carburetor
-Check gas line >>> pull gas line loose and see if gas flows out of tank to carburetor
-Take out spark plug > put finger over spark hole and pull cord >> do you feel suction that says you got compression?
-Put spark wire back on spark plug >>> hold spark plug so threads touch bare metal part of spark plug hole >>> pull starter cord and see if spark shows between plug and saw >>> suggest you not hold metal part of spark plug while pulling cord [you'll understand why]
-If spark plug shows spark, then your saw has spark ... so put in new plug and start fresh.

If your saw has compression, spark, and fuel it should start unless carburetor is gummed up because gas was left in tank.
Here is the final trick. Start the saw while spraying WD-40 directly into carburetor and see if you can keep it going with the WD-40. This might take a helper. If this does not work, then carburetor is bad or gas line is clogged at carburetor. Time to take it to the shop.

Oct 06, 2010 | McCulloch Garden

1 Answer

Why wont my chainsaw tick over, it revs up but not tick over. also, cannot start it after 2-3 mins of usage, why?


Check the air cleaner and muffler for plugging. Try turning the idle speed screw (not the L jet screw) CW one full turn. Does it now idle? If the chain keeps turning at idle, back off the speed screw until the chain stops after revving the engine. When the engine won't start, remove the spark plug and check for blue, snappy spark. If the plug insulator is black, try a new correct type plug. If sparks ok, then squirt some fuel mix into the plug hole, replace the plug and try to start. If you get a pop or two, then fuel delivery is a likely problem. If it again runs, the plug may have been the problem. Otherwise, check the fuel filter, fuel line, and carburetor for any loose fasteners. Finally, run the engine at full throttle--it should 4-stroke with no load, but immediately 2-stroke when cutting. Adjust the H jet needle to achieve this. hope this helps!

May 19, 2010 | McCulloch 16 Inch Gas Chain Saw MCC1635AK

1 Answer

Pro 42CC 2 Cycle Chainsaw, 18": New gas, clean plugs..Ran fine last year, won't st...


Check for a plugged fuel filter and defective fuel lines. Make sure the carburetor fasteners are tight. Check for spark at the plug--it should be blue and snappy with a new plug. If ok, squirt in some fuel mix in the plug hole, replace the plug, and see if it will pop a couple of times. If ok, make sure the primer bulb draws fuel into it after several pumps. If still won't run, remove the lower chamber of the carburetor and check the diaphragm for flexibility and no holes. Hope this helps!

May 12, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Describe your Husqvarna "Chain Saw -


Remove the spark plug and test for spark. If ok, try some starting fluid in the plug hole, install the plug, and try to start. If it runs a short time, it is not getting fuel. Check fuel lines including inside the tank. Clean or replace the air filter. If this saw is fairly old, the carburetor probably needs a re-kit and cleaning. Does it have good compression? Check the muffler for plugging. Make sure the fuel/oil mix is fresh. Good luck!

Sep 12, 2009 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Mini-mac 6 won't start


Engine needs spark and fuel to run. Does the spark plug fire when pulled through (remove the plug from the engine and clean around the plug base before taking the plug out)? Does it have fresh oil/fuel mixture? Try squirting a little fuel mix directly into the cylinder spark plug hole, and return the plug (if it was sparking). It should pop a couple of times--might even keep running! If it won't fire again (with the choke closed), then the carburetor probably needs attention. Has the saw been in storage for some time with old fuel left in the tank? If so, wash out the fuel tank with new fuel and pull the starter a number of times with new fuel in the tank. This engine runs fine with 40:1 or 50:1 (with right 2-stroke oil) fuel/oil mix.

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1 Answer

Poulan chainsaw wild thing


Remove the spark plug and squirt a little bit of the fuel from the gas tank into the spark plug hole, replace the spark plug and crank it over several times.

If it runs, or tries to run... that tells you that your engine, ignition system and gasoline are good (or atleast good enough to get it started)

Next check your fuel line and the primer ball. Make sure that when you pump the primer ball that you can see it pumping fuel through the fuel lines in ONE direction only. (It's kind of hard to see, you might have to start the test with empty fuel lines).

If that fails, you need a carb kit because that's where the check valves are. (unless your primer ball is cracked, broken, or clogged)

Next check the metering diafram and needle in the carb. If the diafram is hard (not easily flexible) or if the needle valve is stuck shut the engine will not be able to get the fuel that it needs to run.

If the Needle valve is stuck, just clean it and it'll most likely be fine.

If the diaphram is hardened, you need a carb kit.

If all the above is ok and it still doesn't work... check the gasket at the base of the carb to make sure that the posative pressure pulses from the crankcase are able to make it through the little holes into the carb (that's how it pumps fuel into the carb).

That's pretty much all the easy stuff. Keep in mind that a new carb only costs about $28 at most places.

Apr 16, 2009 | Poulan Wild Thing 2375 18" Gas Chain Saw...

1 Answer

Used wrong gas can and ran saw on pure gasoline.


if your saw didnt lock up ,or overheat it should run again, take out spark plug, with switch off, put your thumb over the hole and check for compression when you pull the cord. if it pops your finger off the hole you probably didnt cook the rings, or burnt the piston, the raw gas may have washed the cylinder down enough to temporarily lose compression (lack of oil seal). refill tank with proper gas/oil mix, squirt a small amount of oil in cylinder and pull it thru a few times , this should seal up the rings again , put in a new sparkplug, and try normal cold start, you may have to clean the plug a couple times before it runs. if it runs but lacks power my guess is the rings got to hot and lost their temper or scored the cylinder. dont use alcohol blended gas this will ruin fuel lines , they soften up and fall apart etc. premium regular if you can get it, check the fuel line to be safe for pinholes as they will **** air and not start if you get alcohol blended gas. anyway good luck. geo_1

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