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Husq 240 chainsaw got spark but not getting fuel to engine

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  • 322 Answers

Check the diaphragm in the carb and the fuel line and filter

Posted on Jan 23, 2013

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Posted on Jan 02, 2017

luckyluke78
  • 333 Answers

SOURCE: Husqvarna 40 Chainsaw won't start

The carb uses the pulses from the crankcase to actuate a diaphram in the carb as the fuel pump.If you strip the carb make sure there are no perforations/cracks etc. on these diaphrams and check too that the valve flaps are OK.if not fit a carb kit.

Also check that the pipe or channel from the carb to crankcase is OK.

If all this is correct you can simply put your hand behind the carb or inlet to check for vacuum if not there you have probably blown a crank seal(but unlikely)and you will have to replace them.

Hope this helps,and please come back if you need any further assistance.

Posted on Aug 10, 2009

Testimonial: "Thanks again luckyluke I did find it and was able to clean it through I'm still having the problem of not starting though, carb kit next 90lb cyl comp"

  • 1 Answer

SOURCE: 350 chainsaw will not start and run, getting fuel

check set screws on the side of carb turn the all the way in the turn out till idles or check the screen in the muffler

Posted on Feb 04, 2010

  • 3 Answers

SOURCE: Wild Thing 18" chainsaw model 952-051338 Spark

Spark plug size= 3/4 or 19mm. Champion RCJ--7Y gapped to 0.025.

Fuel mix= synthentic 40:1.

http://www.manualsonline.com/ex/thread/view/idThread/3524133

Posted on Oct 24, 2010

  • 250 Answers

SOURCE: what is the spark gap

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Posted on Apr 08, 2011

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1 Answer

What is the carb settings on husqvarna chainsaw


how is the exhaust? if its 2 stroke it needs the exhaust for back pressure. if its 4 stroke, the exhaust isnt as important but it still might be causing issues.

Carb settings vary from carb to carb which is why they are adjustable. Madsen Shop Supply Inc Here is a good tutorial on Husq Carbs.

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1 Answer

How do you check the spark on a Husqvarna 240 chainsaw?


Buy yourself a spark tester from the local chainsaw dealer, these will clip to the cylinder to create an earth, the plug cap fits to the end, it will have a large gap to load the ignition unit, if there is a spark when the engine is cranked the unit is ok.

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Honda GX 240 engine has spark, new carb; won't fire. what do I do?


remove the muffler and try it there is a screen inside the muffler that get carbon build up if it runs with out the muffler pry it open and clean it

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1 Answer

Huskvarna 240 isnt getting any gas? there is spark


Carefully check the integrity of the gas line in the tank...make SURE the fuel filter is absolutely clean. If that's all OK, maybe you need a carb kit....try not to run ethanol gas if you can...it destorys small carbs on chainsaws.

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1 Answer

Cannot start husq 340 have spark but no combustion even if put gas in spark plug hole. have new spark plug


The engine may be flooded--take the plug out, turn the saw upside down, and pull the starter rapidly a few times with the throttle full on. If flooded, a fuel spray will likely come out of the plug hole. Make sure the ignition is OFF when doing this--you don't need a fuel fire! Is the spark at the plug blue and snappy (plug gap set to 0.020")? Replace the plug and see if it will run. Make sure the air filter is clean. Hope this helps!

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1 Answer

Cuts out on high revs 240 chain saw


Many saws made today are using electronics for engine control. If the engine rpm's starts to rev to high, the electronics in the coil will start to 'cut out' some of the spark. This is normal in this senerio.

But, now the real problem causing the senerio;

Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
5) replace gaskets/diaphragms
b) use a spray carb cleaner to clean jets, holes, and body of carb

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1 Answer

Husqvarna 40 Chainsaw won't start


The carb uses the pulses from the crankcase to actuate a diaphram in the carb as the fuel pump.If you strip the carb make sure there are no perforations/cracks etc. on these diaphrams and check too that the valve flaps are OK.if not fit a carb kit.

Also check that the pipe or channel from the carb to crankcase is OK.

If all this is correct you can simply put your hand behind the carb or inlet to check for vacuum if not there you have probably blown a crank seal(but unlikely)and you will have to replace them.

Hope this helps,and please come back if you need any further assistance.

Aug 08, 2009 | Husqvarna Craftsman 36cc, 16 In. Gas Chain...

1 Answer

I have a homelite 240-hg I cant get it started i


Try some starter fluid (eather) that wil give you an indication if it's ignition or a fuel problem.

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