In most cases, it just requires a little maintenance and it will be back to running like new. A clogged air filter may cause your blower to idle roughly as well. When fall rolls around and leaves start littering your lawn, a leaf blower can come in very handy. If I let it idle for a … I have always run it dry so the carb, etc. Just because your leaf blower won’t start doesn’t mean it needs to be replaced completely. I had to change the fuel lines (apparently a common problem), but after reassembling it, I can't keep it running. Best wishes to all. Reconnect your spark plug if it is in excellent condition; Repeat these steps every single week while your leaf blower is in use. It starts fine and runs well for about 15 minutes or so, then it bogs down. Put it back on the motor and away we went. There's a number of reasons why your leaf blower might be failing to start up, and it typically depends on what fuel your models uses – petrol, electricity or battery. If your blower engine will idle but dies at full throttle, or leaf blower stalls when i give it gas. If I let off the throttle, it will idle but if I don't let off, it will stall. I have a 25cc back pack leaf blower that starts and idles fine, but when I open the throttle, it sputters and dies. If you’ve had your leaf blower in storage over … A clogged carburetor is most commonly caused by leaving fuel in the leaf blower for a long period of time. At best, it will run at half throttle, but never at peak rpm. I have replaced the lines, fuel bubble, carburetor, and carb gaskets, and spark plug. I use it to blow the debris off my tractor, which is really dirty right now, so it is important that I get the leaf blower running. Air filters can be cleaned to ensure they run properly, and should be inspected as part of your normal blower maintenance routine. Today I took the carb apart and cleaned the screen. The carburetor or air filter might be clogged. Which is getting very annoying in this cold weather. Gas leaf blowers are more prone to having issues over electric blowers, simply because there is more that can go wrong. To all the kind men who addressed my problem with the leaf blower. is very, very clean. When your Gas Leaf Blower Quits Working Seems like a fuel supply problem. Old fuel left in your petrol leaf blower. We have a like new Echo backpack blower which starts easily. Troubleshooting a Leaf Blower. Hi, I am attempting to do my own repairs, but am stumped by my leaf blower. I really appreciate all the guidance and advise. Regular leaf blower maintenance requires you to do the following to keep your leaf blower shock-free: Disconnect your spark plug; Check your spark plug for corrosion or other damage. When it is clogged, the air filter will allow just enough air through to the engine to idle, but when you engage the throttle, it will shut down. I have a newer model Husqvarna 125 B blower. 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