Weedeater 25cc Gas Blower () Logo
Anonymous Posted on Dec 14, 2012

Weedeater FB25 5months old only used once and was hard to start right from the box. Can't get it to run now. What steps should I take on troubleshooting

Hard to start and won't run. Only used it once and it was hard to start then. It will only run for a second and shut off no matter how I try to start it. I prime it and use the full choke and it'll try to start, then I put it on half choke and try again and it'll only run for a second and shut off. Then nothing no matter how many times I crank it. Then I start all over again with the same results.

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Andrew White

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  • Master 2,239 Answers
  • Posted on Dec 15, 2012
Andrew White
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Joined: Dec 08, 2010
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This sounds much like poor car settings ( set too lean ) you need to richen up the L and H screw on the carb, unfortunatley there will be anti tamper sleeves on the carb or a special tool reqired to adjust them, turning the screws anti clockwise will richen the mixture if you manage to remove the caps or get hold of the apropriate tool.

1 Related Answer

Anonymous

  • 130 Answers
  • Posted on Feb 16, 2011

SOURCE: My weedeater 150 mph starts

One cause of such a symptom could be an obstructed exhaust. Make sure the outlet of the muffler is not obstructed (ex. dirt dobber nest), also check the exhaust port by removing the muffler.

Testimonial: "Muffler did need cleaning as it was clogged with oil but problem still persists."

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This is a FREE answer,Please take time to rate me
Jun 10, 2011 • Garden
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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 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.
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If the mower/weedeater is over a year 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.
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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.
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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 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.
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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
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Same Problem

try winding the mixture screws out a little
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