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I have a McMcullouch chain saw model 3214 it has become very hard to start. Cleaned the air filter and replaced the spark plug. After I do get it started it is almost impossible to restart when warm. If I remove the spark plug and connect the spark plug wire back to the plug and connect a short jumper cable from a fin on the cylinder and the other end to the ground side of the plug and pull the started I see a very weak looking spark.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 45 Answers

SOURCE: Husqvarna Chain Saw Rope Pulls Very Hard, what is the cause?????????

Has it always done this or has it developed?
Some saws have a decompression button to make it easier to pull over.

Posted on Oct 07, 2008

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steve_lima
  • 181 Answers

SOURCE: poulan chain saw P3314

pull the muffler off and check if the piston is scored,if it is you need to replace the piston and cylinder.

Posted on Jan 07, 2009

steve_lima
  • 181 Answers

SOURCE: weak spark on 55 rancher chain saw/ airgap on magneto

the air gap is .010 to .012 inches,hope this helps, if not contact me and i'll help you with anything i can

Posted on Mar 12, 2009

lindsay836
  • 677 Answers

SOURCE: husqvarna 181 se chain saw

I would replace the spark plug, make SURE you have the correct gap. Make sure you are using the correct oil gas mix, I believe it is 40:1.
If that does not help you may have a bad coil.

Posted on Feb 05, 2010

  • 4088 Answers

SOURCE: Have a Mac 3214, fuel lines were rotten, replaced

The fuel metering needle in the lower carburetor chamber may have a bad rubber tip or the rubber diaphragm may be hard or cracked. McCullough fuel tanks vent through the cap (it should not have a gasket). Gravity plays no part in the carburetor fuel volume. Remove the spark plug (ignition off) and pull the engine through a few times without the choke on, but the throttle wide open to remove excess fuel in the crankcase (no smoking during this procedure). Make sure the plug is dry when you put it back. Hope this helps!

Posted on Apr 19, 2010

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