Question about Husqvarna Forest & Garden 125bt Backpack Blower

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My 125 bt blower does not reach full power sometimes (intermentent) I changed the plug and the air filter and still the problem persists, it's only 9 month old

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You can try turning the high screw out just a little if that does not work try turning it in some

Posted on Jun 27, 2009


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My 150 BT hysqvarna blower starts and runs good at first and loses power and stalls after running for a few minutes.changed diaphrams and fuel filter and now does same but doesn't stall

Most people blow air through the carb passages without running something through them to remove the gelled fuel, also these small carbs use Welch plugs that limit access to cleaning carb completely. To do a complete job of it it must be fully dismantled (not air blown through passages) to make it operate correctly again.

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My DT 125 sputters terribly in midrange rpms. Funny though, when it is about to run out of gas (right before switching to reserve) the power smooths. Wish it could run like that all the time. I know two...

There are three things that could be causing the problems you mention.
(1) You could have a bad four hole washer in your fuel petcock that is causing fuel flow issues. Rebuild or replace the petcock.
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Blower not running at high rpm when full throttle. Cleaned air filter, gas vent, gas filter and spark plug. Blower is 3 years old. Have not bought any new replacement parts.

Try removing the muffler and look inside of the exaust port, you should be able to see the piston in the full opening of the port. If you can, try starting and running at wide open throttle. If it runs fine( a bit loud, so wear hering protection), then you have a plugged or partialy blocked muffler or spark arestor. Sometimes rich mixture can cause excessive carbon build up.

Hope this was helpfull.

If you need further help, I’m available over the phone at

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PoulonPro Leaf Blower will not run properly

the carb has a screen in it it needs to be cleaned out the fuel gets crystalized in the carb when it sits for a while. and if the carb has a high and low on the carb meaning 2 screws on the side of the carb .one is for air and the other is for fuel try this first start it up and give it full throttle and turn the high adjustment till it does something screw it in slowley and or out till it is at full rpm sometimes the adjustment screws do vibrate there way out of adjustment .if it dont work then take the carb apart to clean out the screen

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