Question about Craftsman 25cc Gas Line Trimmer

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Craftsman Weedeater won't start

I have cleaned and rebuilt the carburetor and replaced the primer bulb and fuel lines. I removed the filter in the tank to make sure it wasn't plugged. It seems to be getting gas in the carb, but it will only start with starting fluid and it dies after a few seconds. What is wrong?

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  • dustindeppe9 Jun 02, 2009

    I took the carb apart and cleaned it again and blew air through it and that worked....for a few minutes. It was running and then it died again. I took it apart and it looks like the screen is filling with dirt/sludge.

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You are definitely on the right track. There is only one thing that could be wrong as long as you replaced the needle valve, screen, gasket, & diaphragm. When cleaning the carb., you need to clean the small portals incarb. with a Den Tek Brush, (used for cleaning between teeth), they work great for this job. These portals, if blocked slightly, can cause this problem.

Jim

Posted on Jun 02, 2009

  • Jim Parker
    Jim Parker Jun 03, 2009

    Thanks for the rating "dustideppe9". If you should have any questions about drywall finishing/patching, or know someone who does, put your questions to the Category:"Tools-Building & Power-Hand Tools" at FixYa .co

    Thanks Again,

    Jim


  • Jim Parker
    Jim Parker Jun 04, 2009

    Thanks for the rating. If you should have any questions about "Drywall Finishing/Patching", or know someone who does, put your questions to Category:"Tools-Building & Power-Hand Tools" at FixYa.com

    Thanks Again,

    Jim


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My craftsman weedwacker 27cc curved shaft wont start and cant figure it out


I need to ask. Did you leave fuel mix in it for a long time? If so then the carburetor will need to be cleaned with a special cleaner. and not the spray can stuff.

Nov 24, 2014 | Craftsman 27cc 2Cycle Full Crank Curved...

1 Answer

I need to replace the primmer bulb


Hi lulutoto...

You will have to remove your carburetor from the trimmer to be able to replace the primer bulb.

NOTE: Before you disassemble the carburetor to replace the primer bulb:
Make sure you mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.

I highly recommend that you take the following actions if your going to replace the primer bulb.

Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Jun 29, 2011 | Craftsman 25cc Gas Line Trimmer

1 Answer

My Model 358-795200 Weedeater/bushwacker won't


Hi istabler1...

Sounds like yiou have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
NOTE: Before you dissemble the carburetor:
Make sure you mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you dissemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Make sure you are getting spark at the spark plug, to do this:
Remove your spark plug and check to be sure you are getting fire at the spark plug.
You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Jun 26, 2011 | Craftsman Garden

1 Answer

My craftsman sim pull weed wacker will start but when I use the throttle it cuts out, I have changed and added new gas.......help ...... tks Greg


Hi greg l bowma...

Sounds like you have dirt/debris in your carburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Jun 17, 2011 | Craftsman 25cc Gas Line Trimmer

1 Answer

Replaced fuel lines and primer bulb. When you press primer bulb it does not pop back out


Hi ptodd09..

Sounds like you have dirt/debris in your carburetor jets,fuel passages.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
If you do replace your fel lines be sure to draw on a piece of paper the routing of the fuel lines for later attachment to the correct connection
Make sure you are getting spark at the spark plug, to do this:
Remove your spark plug and check to be sure you are getting fire at the spark plug.
You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines connected to the carburetor.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Jun 12, 2011 | Garden

1 Answer

Craftsman weedeater 316.970111 model//starts easy & runs for ten to fifteen seconds & dies like its out of fuel. has new primer bulb,fuel lines,spark plug.


I could not find your model based on the number you listed in your questions. Sears Parts Direct will have the schematics for your machine. Difficulty with starting the 2-cycle trimmer (especially if it has been sitting for 6 months or more) is common:

It is most likely you will need to service the carburetor. Today's modern fuels will, over time, gum up the carburetors and small passage-ways within the carburetor making the carburetor ineffective. Diaphragms will become stiff and ineffective. A carburetor rebuild kit can be a DIY project and are inexpensive. Common carburetors for the Craftsman is either Walbro or Zama. You will need to look closely at your carburetor to find the name and model for replacement carburetor parts.

You can also remove the exhaust or muffler to visually insure that the small screen (if applicable on your actual model) is clear of carbon build-up. Clean/replace and retry.

Before you rebuild your carburetor or remove the exhaust, try the simple things below:

1. Air Filter maintenance. Your air filter needs to be reasonably clear. You can clean with water/soap, insure it is dry and lightly oil and replace.
2. Replace your pre-mix fuel or determine that is no older than 2 months old. I know you have done this, but insure it is fresh AND is of the correct ratio (typically 23:1 to 40:1).
3. It appears you have done this, but if not Follow the fuel lines (especially within the fuel tank) any deterioration in the lines will allow air into the system which will contribute to a difficulty in starting. Fuel lines > 6-7 years old often need to be replaced.
4. Remove the fuel filter within the tank and clean by blowing compressed air through the filter and using soap/water.

Retry. These are the issues to about 95% of starting problems for 2-cycle string trimmers.

Sep 24, 2010 | Garden

1 Answer

Idles but dies when accelerated


Sounds like fuel flow restriction. Since you've replaced the fuel lines already try this....Remove and clean the carbureter needle valves and seats...Blow/**** out the inlet hose fittings ( should be 2 small brass fittings on the side of the carburetor) If you haven't replaced the lines completely (from inside the tank to carburetor) do that now.

Feb 12, 2010 | Garden

3 Answers

I re-tubed my trimmer and now the bulb won't prime


I had exactly the same problem. On my weedeater, there is a screen in the carb under the primer bulb that was dirty from the fuel line falling apart. After replacing the fuel line AND cleaning the screen, the primer bulb will move fuel and it runs great.

Jul 06, 2009 | Craftsman 25cc Gas Line Trimmer

3 Answers

Craftsman 32cc weed eater wont start. Push in the primer bulb and it does not refill, stays stuck in!


Check the fuel lines for cracks/breaks. If they are o.k., then:

You willneed to disassemble the carburetor and spray with carb.cleaner. Makesure the small screen is free of debris.(Should be able to see daylightthrough it.)

Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152),to clean the small portals in carb. These portals can become blocked. Reassemble and start.

If the carb. parts are more than 4 years old, you may have to replace them.

If you need further assistance, just let me know.

Jim

Jun 27, 2009 | Craftsman 25cc Gas Line Trimmer

3 Answers

Craftsman leaf blower, primer bulb will not return, won't start


primer bulb on weedeater will not return to normal or **** gas into it. new primer bulb. lines to tank have been repalce and can blow through them but primer bulb will not push air into tank

Apr 22, 2009 | Craftsman Garden

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