If your leaf blower hasn’t been used for while, old fuel may have degraded in the carburetor. Aug 21, 2011 #1 I'm tired of cussing this thing. The key is integrated into the flywheel. Joined Jun 19, 2014 Threads 1 Messages 2. Save Share. I started by checking the air filter, replacing the spark plug, then replacing the gas. Any help is appreciated. Use full choke to begin with, push the primer 3 times, squeeze the trigger,(gas,throttle), pull the starter rope, if or when it fires,(tries to start) move the choke to the center position. It took about 15- 20 pulls to start out of the box. Go. Echo leaf blower won't start. It has a new carburetor,plug,fuel lines, and air filter. Echo PB251 Blower won't start. Jun 19, 2014 #1 I am trying to get my Echo PB-251 leaf blower running after it quit on me this past weekend. Once started, it would run fine for 5-10 min … I have had a couple of these same blowers come in with the same scenario. Thread starter jcbabb; Start date Aug 21, 2011; 1; 2; Next. Reply. I used new gasoline and the Echo oil. Squeeze the trigger and pull again, it should start, give it a few seconds then move the choke to run. Jump to Latest Follow 1 - 13 of 13 Posts. It will leave a sticky residue which prevents the engine from starting. Echo PB-251 Blower Won't start. Unit will start with difficulty with choke active, but will stop when switched to run. I did not take it back because I thought I probably flooded the engine. I have an Echo PB-403 that I picked up from a guy for nearly free since it didn't run and I thought it would be no big deal to get it up and running. When I first started troubleshooting, it was extremely hard to pull. Could not get it started this spring - not even a burp. Next Last. Make sure the tank has enough gas, turn the switch to on. I am having issues with my Echo PB-500H leaf blower. I’m lost at what to do next. Stale fuel is the most common reason why a leaf blower won’t start. You’ll need to drain all the fuel from the system. I have also confirmed ignition system is functioning with inline spark tester. Echo leaf blower will not start (model PB-251) Thread starter 4x15mph; Start date Jun 19, 2014; 4. I have a echo blower that will not start and am now clueless. Has a good blue spark. The blower will not even pop. I just bought a new "quiet" Echo model PB-251 hand held blower. Please keep in mind that this article is for the Echo PB-413h leaf blower with serial numbers P09512001001-P09512999999.If your Echo PB-413 has a different serial number, please refer to the reference section found at the bottom of the oTroubleshooting and Fixing Solutions for My Echo PB-413H backpack Leaf Blower article. Also the flywheel key is still intact. It was hard to start, but eventually it did. I am so frustrated. Backpack blower was running last fall (although wide open throttle was rough). 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