Question about Poulan Pro 16-Inch 38 cc Anti-Vibration Chainsaw #PP3516AVX

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I have a 1980 pioneer farmsaw fm model. carb has been rebuilt there is spark from the coil saw will not fire

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6ya6ya
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Posted on Jan 02, 2017

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johncaman
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SOURCE: Poulan saw will not start

This is not really a solution.... I can't post a comment. I think you know where I was going with the flywheel thing - whether or not the timing is right. I thought you'd pulled the flywheel yourself, and sorry, I'm not sure how to pull it. I'm assuming this is a 2 stroke motor... you might want to just check that the piston is near top dead center when the magnet on the flywheel hits the coil..... you can stick a pencil or anything long through the spark plug hole to give you an indication if the piston is at the top of the cylinder or not. Let me know how it goes!

Posted on Mar 14, 2009

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SOURCE: Stihl chain saw won't achieve max rpm

Crank seals are leaking, causes lean or low vacuum for the carb to work properly

Posted on Mar 26, 2009

  • 83 Answers

SOURCE: 46 cc Sears/Poulan chainsaw will not start

Four things I can think of:
1) There is a short in your spark plug wire. When you bend it to connect the plug in the machine it allows the exposed cable to contact the engine block. Examine the wire all the way to the coil.

2) Flywheel key is sheared ( you obviously know how to take off the flywheel since you checked the seals).

3) Flywheel air gap is not set correctly. Loosen the coil. Put the cover of a notebook or the cardboard piece of a cigarette pack between the magnetic portion of the flywheel and the coil. Tighten the coil down. This will get you the proper gap.

4) Your cylinder/piston or rings are scrubbed out. Even though it passed a compression test, on rare occasions it will loose compression only when it fires. So do the following:

Remove your exhaust manifold. Look into the cylinder with a flash light. You are looking for scratches. Anything larger then a light fingernail is definite proof you need a new cylinder/piston assy.

If it passes that test do the following:

Pour mixed fuel straight into your cylinder until 1/4 full. Slowly pull your saw over while looking into the cylinder. If you see bubbles after the ring/rings go by then you need a new cylinder/piston assy. On rare occasions if no scratches are present on the cylinder wall or piston, you may be able to change just the rings.

First if you can get a inline spark tester so you can see if your getting spark with the plug installed.

Posted on Mar 31, 2009

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What is the correct oil gas mix for an older pioneer farm chain saw?


If orange (FarmSaw) 24:1
http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/373683b7e144c81188256b00001f8ba0?OpenDocument
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4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
Thank You for using FixYa.

Jun 30, 2010 | Garden

1 Answer

I am trying to start my 1980 gm 350 in my boat. engine will turn and have new fuel and filters. Pulled off coil wire and got spark, grounded a spark plug to the manifold and got spark. What could it be?...


definitely a fuel issue. be sure to check that the distributor isnt 180 degrees off. you say it'll start when you pour some fuel into the carb, it sounds like you arent getting enough fuel then. try adjusting the float level higher so that more fuel will be pumped through. and how old is the carb? has it been rebuilt recently? make sure the jets are clean and adjusted properly. make sure none of the mixture screws are bottomed out. it sounds like it's all the quadrajet's fault on this one!

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1 Answer

Pioneer chain saw mo# p411 starter pull rope does not retract spring came off post and was repositioned how do I ''pretension''


The spool on my Pioneer FarmSaw says 2½ turns clockwise. Remove pull handle, place cord in notch, now it be pretensioned. Feed cord back through cover and reistall handle. Lou

Jul 30, 2009 | Garden

2 Answers

46 cc Sears/Poulan chainsaw will not start


Four things I can think of:
1) There is a short in your spark plug wire. When you bend it to connect the plug in the machine it allows the exposed cable to contact the engine block. Examine the wire all the way to the coil.

2) Flywheel key is sheared ( you obviously know how to take off the flywheel since you checked the seals).

3) Flywheel air gap is not set correctly. Loosen the coil. Put the cover of a notebook or the cardboard piece of a cigarette pack between the magnetic portion of the flywheel and the coil. Tighten the coil down. This will get you the proper gap.

4) Your cylinder/piston or rings are scrubbed out. Even though it passed a compression test, on rare occasions it will loose compression only when it fires. So do the following:

Remove your exhaust manifold. Look into the cylinder with a flash light. You are looking for scratches. Anything larger then a light fingernail is definite proof you need a new cylinder/piston assy.

If it passes that test do the following:

Pour mixed fuel straight into your cylinder until 1/4 full. Slowly pull your saw over while looking into the cylinder. If you see bubbles after the ring/rings go by then you need a new cylinder/piston assy. On rare occasions if no scratches are present on the cylinder wall or piston, you may be able to change just the rings.

First if you can get a inline spark tester so you can see if your getting spark with the plug installed.

Mar 24, 2009 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Xv750 virago 1990, idles on only 1 cyln then cuts out


Hi and welcome to FixYa,

Let's try process of elimination:
  • remove both pugs;
  • reconnect each plug to respective sparkplug wire;
  • ensure that the threaded metal part of the plugs touches bare metal of the engine;
  • crank/start the bike;
  • the plugs should show spark at each electrode alternately;
  • if yes, the plugs, coil, ignition system works;
  • if not, the plug not with sparks has an issue which could be the plug itself, the sparkplug wire, the ignition coil, the CDI/igniter.
Having done this and both plugs have sparks, then it is fuel issue. To verify, you could try:
  • at the bottom of each carb is the bowl with a drain screw;
  • if the each carb has fuel, loosening each of the drain screw would allow fuel from the bowl to drain through the drain hose;
  • which ever carb/bowl has no fuel draining would be suspect;
  • of course it could also be a blocked fuel line (kinked) or weak fuel pump;
  • if both bowls/carbs drains fuel, then it would be fuel delivery to the combustion chamber;
  • this then would require cleaning/rebuilt.
Good luck and Thank you for using FixYa.

Pls be informed that due to my current rank and rating, even a Helpful would be detrimental to my status. Should this solution not address your concern, it would be appreciated if you could just not rate it at all. Cheers.

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