Question about Poulan Pro 42CC 2 Cycle Chainsaw, 18"

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The saw starts up fine, runs fine but not for long. it runs for about 1 minute and dies. like it is out of fuel or sucking air, i noticed there is no filter on the suction line and there is another nipple entering the fuel tank which appears to need a hose on it , is this just a return line, or should the long line in side the tank press on to this nipple? thanks,

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I've had my pp4218 for about 2 years and the fuel lines have rotted. I'm thinging from ethanol in the gas. However, I'm replacing them and cannot tell which lines go where. Does the large line from the bubble go to the filter and the little line return?

Posted on Aug 05, 2010

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There should be a filter on the long line,on a heavy little aluminium weight,which keeps it into the fuel when tipped over.the short one will probably be the return line.check the carbie,to see if there is a fuel return line.some chainsaws do have them,most weedeaters do.the long fuel line is quite long allowing the filter to flop about,always at the bottom of the tank,where the fuel is

Posted on Jul 11, 2010

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Yes that is a return line and it should have a fitting on it but no other hose. With the fitting in place you can pull the hose up tight to the top of the tank. The fitting is there to keep the line (return line ) from being pulled from the tank. Also it expands the hose to make a tight seal for that particular hole. Fuel won't run out if the saw is turned upside down . Hope this answers your question.

Posted on Oct 16, 2010

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Why does it die after running 10 minutes?

Could be 'Vapour lock' when it dies, try opening the fuel tank and see if it starts back up.! If it starts and runs fine then I would put the cause down to a faulty tank vent, which isn't allowing air back into the tank to compensate for the fuel being drawn out meaning the saw is struggling to draw fuel out the tank as its in a vacuum.

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Once the saw cools down will it restart and run fine? There are a couple other solutions that are not directly due to carburation. The first two solutions above are definitely your first options.

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My chainsaw, after runnig ok for 15 minutes, is now running sluggish. So, when i press the trigger the saw runs at normal speed for around 3 seconds then begins to die. I wait for a few seconds then the...

it sounds like a fuel issue. on my Stihl (390 )saw I had that same problem and I found that the fuel line inside the fuel tank was kinked and split and sucking air ( not fuel ). also check to make sure your gas oil mix is correct ( start fresh when in doubt ). it also can be a idle issue ( Fast idle or Slow idle ), but since you just had it serviced - I would look at the fuel line and fuel first. please let me know what you find and if that does or does not solve your problem,, there are a few more things to check. ( also - check to see if the air filter is clean and clear ,, brush it off if dirty ).


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1 Answer

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But that sounds like what it is, running out of gas when you let more air to it.

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