Question about Craftsman 25cc Gas Line Trimmer

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My Craftsman line trimmer will start just fine

My Craftsman line trimmer will start just fine and idles but will die immediately when i try to give it gas.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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evwood
  • 50 Answers

SOURCE: Trimmer starts immediately, then stops

How old is the trimmer? If still under warranty, Sears can fix this. If not, then my experience has been the problem is a bad coil. This is due to heat build up. When the coil gets hot, it shorts out.

Posted on Dec 07, 2008

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  • 1 Answer

SOURCE: have craftsman 32cc gas line trimmer it runs until given gas

Replace the spark plug, clean the air filter and fill the tank with new fuel at the correct fuel oil ratio. Had the same problem last year. Tried to cheat with year old gas.

Posted on May 10, 2009

  • 246 Answers

SOURCE: I need to know the gas mixture ratio for a craftsman weedwacker

Hello mcguilmd:

>>All Two Stroke Engines will use a 50 to 1 Ratio using Today's Two Stroke Oils. I once had an Old Chainsaw probably from the 1950s, maybe Earlier 70s that had a sticker on it that said to use a 25 to 1 Fuel/Oil Ratio, but that would have been using Two Stroke Oils of the Time Period the Chainsaw was Manufactured. I was having a Problem with Oil Coming Out of the Muffler and Started Decreasing the Oil in the Gas. I Reduced the Oil Until it was a t a 45:1 Ratio and Decided to be Safe, I would Use a 40:1 Ratio Mix. In that Chainsaw I used 50 to 1 Ratio with no problems. Today's Two Stroke Oils compared to Yesteryears are more Efficient at Lubricating. It is like comparing Today's Synthetic Motor Oil to Motor Oils of Decades ago. All the Equipment I use in Landscaping, anything from a Weed Eater, Leaf Blower, Chainsaw, Hedge Trimmer, use 40 to 1 ratio, and I use all types of makes and models, Stihl, Homelite, Husqvarna, Shindaiwa, and Echo, Sears. I mix up a 5 Gallon Fuel can and use it in all of the Equipment for my Customers and for my Landscaping. I like my Fuel/Oil Ratio a Little Heavy, so I use a 40:1 Ratio. The Following was Copied and Pasted here from and MTD E-mail to me when I Asked for the OEMs Suggested Mixture for this Unit. The mixture, as described by the engine manufacturer, is a 50:1 ratio when using the approved types of 2-cycle engine oils.
50:1 ratio is a mix consisting of 2.5 ounces of 2-cycle oil per 1 gallon of gasoline.
The 2-cycle oil used should be approved and have one or more of the following specification titles: NMMA TC-WII, TC-W3, JASO FB, or JASO FC. NOTE: If unsure of the 2-cycle oil specifications, or the oil is not approved, use a 32:1 fuel to oil ratio. This ratio consists of 4 ounces of oil per one gallon of fuel.
NOTE: Always mix 2-cycle fuel oil and fuel in an approved gasoline safe container prior to filling the engine. Make sure to use a separate gas can for this 2-cycle fuel mixture and label it accordingly. Keep in mind that the fuel capacity of these engines normally is less than a gallon, therefore you will have to use this extra oil mixture for multiple fuel fills. Adding a fuel stabilizer will also help to increase the shelf life of fuel.
>>I Suggest Using a 40:1 Ratio and if Oil Starts Coming Out the Muffler then go to a 50:1 Ratio.
Please, Do Not Hesitate, If I Missed Something or you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck

Respectfully

jbridger (John)

Posted on May 14, 2009

  • 1 Answer

SOURCE: Craftsman gas 25cc weedwacker starts, runs a few secs, then dies

The gas take up line is disconnected or is broken. I have the same problem and need to find a diagram to fux it.

Posted on Aug 28, 2009

  • 11 Answers

SOURCE: I have a Craftsman 32cc weed trimmer, can't give gas, it stalls

Usually the diaphram is wore out. It is a relatively inexpensive part. Does it run better with a little choke? If the answer is yes chances are it's the diaphram. Also sometimes the adjustment screws can move. There are two, one for low speed, and one for high. With the engine warmed up make small movements on the screws (some are marked low, and high) in, and out adjust til the engine runs at its optimum.
Hope this helps!

Posted on May 05, 2010

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1 Answer

Will start and idle,but give it gas and it dies.


Hi Tammy:
Make sure the air filter is clean.
Check the muffler. Sometimes they get clogged with carbon and the unit will idle but dies when you try to increase revs.

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Why does my craftsman 2-cycle model 316.791860. Gas trimmer die?


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Craftsman 25cc Gas Line Trimmer dies when giving throttle. It starts up and runs in the "Start" setting, then dies as soon as you give it gas. I replaced the carburetor...it ran great immediately after...


Sounds like the carb is getting clogged. Drain the old fuel and make sure the fuel filter is attached to the fuel hose inside the fuel tank. SeaFoam or a product called Start will sometimes clean the carburetor. If not, you will need to have the carb rebuilt, flushed or replaced.
Also, check your muffler and spark arrest, sometimes if they are clogged, you will have a similar issue.

Nov 11, 2017 | Craftsman 25cc Gas Line Trimmer

1 Answer

I have a Craftsman 32cc weed trimmer, can't give gas, it stalls


Usually the diaphram is wore out. It is a relatively inexpensive part. Does it run better with a little choke? If the answer is yes chances are it's the diaphram. Also sometimes the adjustment screws can move. There are two, one for low speed, and one for high. With the engine warmed up make small movements on the screws (some are marked low, and high) in, and out adjust til the engine runs at its optimum.
Hope this helps!

May 04, 2010 | Craftsman 25cc Gas Line Trimmer

1 Answer

32 cc craftsman trimmer starts but will not run at full rpm


Air fuel mixture problem,,,you need to have the filter pulled out and cleaned. Check fuel system for debris and clean, that includes all the fuel lines and possibly disassemble carb and clean and reassemble.

Apr 27, 2010 | Craftsman 25cc Gas Line Trimmer

1 Answer

The weedwacker dies when I squeeze the throttle trigger


You need to clean the carburetor. Remove and disassemble carb. Use a den Tek Brush, (used to clean between teeth), to clean the small portals in carb. Use a carb. cleaner while cleaning. Make sure the small screen in carb. is free of debris. The smallest of paticles can cause the carb. not to run right. Reassemble the carb. and try starting. If there is no change, then you will need to buy a carb. kit for your trimmer. Replace all appropriateparts: gaskets, diaphragm, needle valve, and the small screen.

Jim

May 30, 2009 | Craftsman 25cc Gas Line Trimmer

4 Answers

Craftsman gas 25cc weedwacker starts, runs a few secs, then dies


The gas take up line is disconnected or is broken. I have the same problem and need to find a diagram to fux it.

May 17, 2009 | Craftsman 25cc Gas Line Trimmer

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