Question about Echo Inc. 44 CC, Carb Certified Backpack Blower

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Echo PB-413H bogs down

My echo pb-413 bogs down at full power. I thinks its a mixture problem but my adjustments made it worse. L and H adjustment screws have
limiter caps. Is there a way to get it back to factory settings?

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  • ry_spider1 Jun 05, 2009

    Thanks for the info but its only 6 month old and has maybe 4 hours on it. So I am at a loss.

  • ry_spider1 Jun 08, 2009

    I will try that Thank you very much.

  • ry_spider1 Jun 23, 2009

    I did try to adjust the H&L now I get good power if I leave it almost choked all the time. So I guess its still a mixture problem.

  • ry_spider1 Jun 23, 2009

    Thank You very much I will try it and see.

  • ry_spider1 Jul 02, 2009

    I finally gave in and replaced the carb. Runs fine now. I guess these carbs. are preset as I did not change any settings. No limiters on adjustment screws either. See what happens. Thanks.



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Echo tools have a screen in the muffler to arrest sparks. Take off the muffler and remove this screen

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There is no point in messing with the setting until you clean the carburetor. it sounds like that is your main problem. Or you may need a new carb. kit, depending on how old the carb. guts are. If you need tips on carb., just let me know.


Posted on Jun 04, 2009

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  • Jim Parker
    Jim Parker Jun 05, 2009

    This seems to be a common problem now with new equipment. I've been seeing a lot of folks with this same complaint with their new small engines??? My only suggestion is that you make sure that your gas mixture is correct, and fiddle around with the H & L adjustment screws. They don't adjust as much as the older carburetors do, and they seem to be more temperamental.


  • Jim Parker
    Jim Parker Jun 08, 2009

    I hope my solution helped you along a little bit.


  • Jim Parker
    Jim Parker Jun 23, 2009

    Then you have a dirty carburetor. When fuel sits for long periods of time, it has a tendency to gum up the carb. This is why you should use a stabilizer in the fuel if you are not going to use it for a season or two.

    will need to disassemble the carburetor and spray
    with carb.cleaner. Make sure the small screen is free of debris.
    (Should be able to see daylight through it.)

    Use a Den Tek Brush, (,
    to clean the small portals in carb. These portals can
    become blocked. Reassemble and start.

    If you need further assistance, just let me know.


  • Jim Parker
    Jim Parker Jun 23, 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

    Thanks Again,




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