Question about Poulan Pro Chain Saw 46cc 20"

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My Poulan Pro 4620 AVX was running good and easy to start but after a couple hours of pretty heavy cutting it began to lose power and die when the trigger was released. Each time it died it was more difficult to re-start and on the fourth or fifth time it wouldn't start at all. I cleaned the air filter, the spark plug and put fresh fuel in but it still won't start. What could be wrong?

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  • Poulan Master
  • 7,063 Answers

Check the exhaust screen

Posted on Aug 09, 2017

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Posted on Jan 02, 2017

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SOURCE: Poulan Pro Chainsaw(PP4218AV) worked for a while now won't start

It's possible that the carburetor diaphragm in the lower chamber has hardened or cracked. Does the primer bulb fill with fuel after several pumps? If not, try moving the line that comes up from the fuel filter to the carburetor over to the primer port that normally connects to the other carburetor connection. Try to pump fuel again--if successful, then there is blockage within the carburetor which should be cleaned with spray carburetor cleaner inside and out. There is a small filter screen inside the main body that can be easily plugged with stale fuel. Hope this helps!

Posted on Jul 11, 2010

  • 248 Answers

SOURCE: Poulan pro 4218 avl, starts (sometimes) then dies,

may be choke problem,about 20.00 for repairman to fix

Posted on Oct 08, 2010

  • 1015 Answers

SOURCE: Hi, I just cleaned my

The fuel pick up or filter should be changed every year but if your saw will start and run good but just not idle then adjust the screw marked T counterclockwise slowly until chain starts to rotate without you depressing the throttle.At that point back it off about 1/16 of a turn until saw will idle but chain doesn't move.Thank you. P.S. If you want to you can go back to factory setting by turning H & L fully closed then open 1 to 1 1/4 turn and very slowly adjust for smoothest operation. Do not adjust H anymore then minimum off factory to avoid engine damage.
If you need further help I would suggest you have a trained tech.service it. Good luck.

Posted on Feb 14, 2011

  • 2239 Answers

SOURCE: My Poulan 260 pro starts and runs for 15 - 30

If you have changed the fuel filter, and the hoses are not leaking, then you may well have a blockage in the internall filter in the carb, the filter is under the alloy pump cover, usually secured with a single screw.

Posted on May 15, 2011

  • 2239 Answers

SOURCE: Chain will not stop spinning

I would say it has an air leak, through a gasket or crank seal, make sure the carb is tight and sealing properly.

Posted on Jun 15, 2011

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