Aug 21, 2011 #1 I'm tired of cussing this thing. The key is integrated into the flywheel. I have had a couple of these same blowers come in with the same scenario. Echo leaf blower won't start. I am having issues with my Echo PB-500H leaf blower. Every pull was very tough and sort of "thunked" every time I ⦠I did not take it back because I thought I probably flooded the engine. They had a sheared or partially sheared flywheel key. Jun 19, 2014 #1 I am trying to get my Echo PB-251 leaf blower running after it quit on me this past weekend. I have also confirmed ignition system is functioning with inline spark tester. Make sure the tank has enough gas, turn the switch to on. Echo PB251 Blower won't start. Thread starter jcbabb; Start date Aug 21, 2011; 1; 2; Next. I am so frustrated. 1 of 2 Go to page. Go. Also the flywheel key is still intact. 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. Jump to Latest Follow 1 - 13 of 13 Posts. Has a good blue spark. I have a echo blower that will not start and am now clueless. Could not get it started this spring - not even a burp. It was hard to start, but eventually it did. I used new gasoline and the Echo oil. Echo PB-251 Blower Won't start. Next Last. I was wrong. Save Share. Now several weeks later, with new gasoline mixture, the blower won't start even with 30 pulls. If your leaf blower hasnât been used for while, old fuel may have degraded in the carburetor. When I first started troubleshooting, it was extremely hard to pull. 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. Backpack blower was running last fall (although wide open throttle was rough). Any help is appreciated. Squeeze the trigger and pull again, it should start, give it a few seconds then move the choke to run. 4x15mph Forum Newbie. Youâll need to drain all the fuel from the system. I just bought a new "quiet" Echo model PB-251 hand held blower. Echo leaf blower will not start (model PB-251) Thread starter 4x15mph; Start date Jun 19, 2014; 4. Hello. It took about 15- 20 pulls to start out of the box. I started by checking the air filter, replacing the spark plug, then replacing the gas. Unit will start with difficulty with choke active, but will stop when switched to run. Once started, it would run fine for 5-10 min ⦠Has 120 psi compression. Echo ES-255 Leaf Blower I replaced both the carburetor and spark plug on my leaf blower with new ones. Reply. 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. The blower will not even pop. It has a new carburetor,plug,fuel lines, and air filter. J. jcbabb LawnSite Member. Stale fuel is the most common reason why a leaf blower wonât start. Iâm lost at what to do next. Joined Jun 19, 2014 Threads 1 Messages 2. It will leave a sticky residue which prevents the engine from starting. Will leave a sticky residue which prevents the engine from starting the common... `` quiet '' Echo model PB-251 hand held blower hard to start out of the box then move the to! N'T start even with 30 pulls start, give it a few seconds then move the choke run... 21, 2011 # 1 i 'm tired of cussing this thing to Latest Follow 1 - 13 of Posts! 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