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My McCulloch TimberBear just dies in the middle of cutting. It doesn't make any difference if it is under full throttle or not. It will not start back up until it is cooled off. It runs perfe

My McCulloch TimberBear just dies in the middle of cutting. It doesn't make any difference if it is under full throttle or not. It will not start back up until it is cooled off. It runs perfect otherwise. Is it electrical or in the carb?

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Sounds electrical. Ignition coil's electronics can become heat sensitive and fail when heated and work again when cooled off. When it happens pull the spark plug and check to see if it arcing the gap. Bad news if you need a coil; no new ones are available if it is the saw I thinking of.

It can remotely be a fuel vapor lock from overheated fuel from running too lean.

Posted on Nov 15, 2014

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Posted on Jan 02, 2017

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  • 373 Answers

SOURCE: Poulan chain saw after carb rebuild.

Is thereadjustment somewhere on the saw
I think there is 2 .

Posted on Feb 03, 2009

  • 25 Answers

SOURCE: my husqvarna 445 starts and runs until full

chanes are the carb needs to be adjusted and the diaphrams in the carb need to be replaced over time they get stiff and hard from old feul, causing it to not pump feul and meter the feul properly

Posted on May 16, 2009

cj2176
  • 520 Answers

SOURCE: the saw wont stay running. I start it with full

Sounds like the carb needs to be rebuilt. Those tiny jets will clog easily and need to be replaced. The diaphragm is also a large part of bogging and dieing. Hope this helps.

Posted on Jun 14, 2009

#1 Taper
  • 1040 Answers

SOURCE: my mcCulloch mini mac 25 starts, runs, and cuts,

It sounds like the fuel cap is clogged. The fuel cap must be able to breathe in order for the carburetor to operate properly.

One way to be sure that it is the fuel cap is: The next time the chainsaw starts to die, loosen the cap for a second or two, it should start running properly again.

Jim

Posted on Jun 21, 2009

blueextc3221
  • 15935 Answers

SOURCE: chainsaw dies out when gas is pressed to full throtle

Carb needs teardown and cleaning. May be a stuck float or clogged jet.
Spraycleaner just wont cut it.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Posted on Apr 05, 2010

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