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I have a craftsman edger that starts but no powerr

Customer Question
i have a craftsman edger that starts but no powerr
Submitted: 2 years ago.Category: Small Engine
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Answered in 28 minutes by:
5/30/2015
Technician: Donald, Small Engine Technician replied 2 years ago
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,229
Experience: I have 25+ years of experience repairing 2 & 4 cycle engines
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Hello and thank you for choosing Just Answer. My name is ***** ***** I will do my very best to get you the answer you need to your question.
Will your engine continue to run until you shut it off? Have you checked your air filter?
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Customer reply replied 2 years ago
engine runs, has no power to run the blade
Technician: Donald, Small Engine Technician replied 2 years ago
I need to confirm something. When you say no power to run your blade, are you saying that your blade is not turning at all, or are you saying your blade turns, but not as fast as it once did?
Do you see any other numbers on your edger?
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Customer reply replied 2 years ago
engine just runs in idle mode, engage the blade, runs very slow does not cut, if hit sidewalk or dirt engine shuts off. i see no numbers on engine, i believe it is Craftsman 77237 - 29cc 4 Cycle Gas Edger
Technician: Donald, Small Engine Technician replied 2 years ago
Have you checked to see if the throttle on your carburetor is actually moving, when you squeeze your trigger?
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Customer reply replied 2 years ago
should the engine be running at cutting speed before engaging the blade?
Technician: Donald, Small Engine Technician replied 2 years ago
Yes it should. If not, your throttle cable may be broken.
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Customer reply replied 2 years ago
the cable is moving the carburetor, just not enough power to cut
Customer reply replied 2 years ago
does the carburetor nee some kind of adjustment
Customer reply replied 2 years ago
engine is not running at maximum speed
Customer reply replied 2 years ago
the throtle is all the way at rabbit running
Technician: Donald, Small Engine Technician replied 2 years ago
Remove your air filter and let's see if your power increases. Do you see any smoke coming from your muffler?
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Technician: Donald, Small Engine Technician replied 2 years ago
Based upon what we have covered thus far, it is very likely that your muffler could be clogged, and restricting your power. Check the spark arrestor screen on your muffler to see if it is clogged.
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Customer reply replied 2 years ago
the power increased with taking off the air filter sponge
Customer reply replied 2 years ago
where is the spark arrestor screen?
Technician: Donald, Small Engine Technician replied 2 years ago
Thanks for this information. If your power increased after you removed your air filter sponge, then a new filter should resolve our problem. You can also give your existing filter a good cleaning with dish washing soap and water. Rinse it well, and dry it.
Try this first, before focusing on your muffler.
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Customer reply replied 2 years ago
how long should the edger blade be?
Technician: Donald, Small Engine Technician replied 2 years ago
Are you asking about the length of your blade?
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Customer reply replied 2 years ago
yes
Customer reply replied 2 years ago
how do you get to the spark arrestor screen?
Technician: Donald, Small Engine Technician replied 2 years ago
Sears shows your blade to be 9 inches. I was not able to pull up a breakdown of your engine. Locate your muffler, and you should see a screen covering the outlet of your muffler.
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Customer reply replied 2 years ago
what else can it be, as when i put the filter in after i cut it off it wont start until i take out the sponge filter
Technician: Donald, Small Engine Technician replied 2 years ago
Do you have full power when your filter is out? You may need a new filter. Check to make sure your oil is not over filled.
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Customer reply replied 2 years ago
i cleaned out the filter let it dry, what is the difference with a new sponge filter, also could it be not enough oil?
Technician: Donald, Small Engine Technician replied 2 years ago
Was your filter oily before you cleaned it? The questions I am asking, are for troubleshooting purposes only.
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Customer reply replied 2 years ago
not overly oily
Technician: Donald, Small Engine Technician replied 2 years ago
Have you located the screen on your muffler?
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Customer reply replied 2 years ago
yes i did, it wasnt cloggged
Technician: Donald, Small Engine Technician replied 2 years ago
I did not see a reply from you, when I asked, if your engine will run with full power, if you leave your air filter out.
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Customer reply replied 2 years ago
not full power, but better
Customer reply replied 2 years ago
what is the difference between a new sponge filter and the one i cleaned out?
Technician: Donald, Small Engine Technician replied 2 years ago
If you thoroughly cleaned and properly dried your existing filter, there is not any difference.
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Technician: Donald, Small Engine Technician replied 2 years ago
Based upon what we have cover thus far, your muffler and air filter is okay. So, it is very likely that your valves are out of adjustment.
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Technician: Donald, Small Engine Technician replied 2 years ago
Manual - Click Here
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Technician: Donald, Small Engine Technician replied 2 years ago
Click on the link above to open manual. Scroll to page 9. Look under Maintenance and Repair Instructions. Then scroll to page 11.
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Technician: Donald, Small Engine Technician replied 2 years ago
It is required by manufacturer that you check and/or adjust your valves after 10 hours.
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Customer reply replied 2 years ago
do you have any more ideas why it is not running at full power? that link is not coming up
Technician: Donald, Small Engine Technician replied 2 years ago
Try This Link - Click Here
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Technician: Donald, Small Engine Technician replied 2 years ago
Give it just a minute to download.
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Technician: Donald, Small Engine Technician replied 2 years ago
Replace your spark plug, just to be sure. If the results are the same, then I suggest that you check your valve clearances.
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Donald
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,229
2,229 Satisfied Customers
Experience: I have 25+ years of experience repairing 2 & 4 cycle engines

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