Echo PB-265L Leaf Blower (I know not a cub, but need some thoughts)
I have rebuilt, fixed etc many small engines, outboards and automobile engines. Fathers church has an Echo PB-265L back pack leaf blower and asked if I would take a look at it. They said they couldn't get it started. I said sure.
Blower is in really good shape, I have taken a first and what I consider very thorough stab at it and I am kind of scratching my head now. Usually its the carb, looked it up and it was $16.00 for a new carb, air cleaner, fuel lines and fuel filter, so I bought that and just replaced it all. 1.) Confirmed I have spark 2.) Confirmed I have fuel to the cylinder 3.) Confirmed not sucking air 4.) Cleaned the Spark Arestor 5.) Compression test came in at 120, plenty to run 6.) When I replaced the carb, I drained the tank and added fresh fuel Still NOTHING when you pull it over, its as if the kill switch was bad, BUT I have spark. I tested the switch and current moves through it, also confirmed spark when it is on and no spark when the kill switch is engaged. I have no wire issues either. Maybe the spark is too weak? I shot some started fluid in the cylinder and it wont kick over. I am at a complete loss with this one. Any recommendations or direction would be greatly appreciated. There honeslty isn't really much more I can do to it, it is pretty simplistic. I have attached the link to the manuals and parts catalog for those that are curious. https://www.echo-usa.com/Support-Hel...20265L&c=en-us |
Do you know FOR SURE the crankcase is not flooded with gas??
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I know you said you cleaned the spark arrester but did you take the muffler off and check/clean the exhaust port out as it may be completely clogged with the coke/carbon and not be able to breathe out. Have had this a few times.
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Put in a NEW spark plug. Like was asked, you sure the crankcase isn't full of fuel? When you put in a new, dry plug--don't choke it or give any throttle, see if fuel gets on the plug. Also did you drain the tank? Dad retired from an Echo (among a little of everything else) dealer. They had everything in the world dumped in 2 cycle fuel tanks---straight gas, water, kerosene, diesel, brick acid. Yeah the brick acid is true--guy got pissed because he sucked so much in the engine it corroded it and they refused to fix it. He couldn't understand why.
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How would I determine the crank case is "full"? Pull the plug and turn it upside down or complete tear down? Assume complete tear down. |
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Or, don't choke it or give it any throttle. Pull on the recoil a few times then see if the plug is wet. If it is, rotate out a dry plug. Continue doing this until the plug no longer gets wet, it cranks, your arm hurts too much, or you break the rope--I've personally done all 4. Won't hurt to pull it several times with the plug out either to dry it out--leave the switch OFF so you don't ignite the vapors--got to be careful with them, you can ignite them by accident---that'll mess your shorts up!:bigeyes: |
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https://youtu.be/PFn_PSXZyE0 |
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