View Full Version : Echo hydrolocks in between mowing days
04-11-2010, 09:43 PM
I go to start my Echo edger and the cord is very hard to pull and gas comes spraying out of the muffler when I finally do get the cord to move. I can sometimes get it started by unplugging the fuel line from the carb and pulling the cord until it fires, then plugging the fuel line back in. When I unplug the fuel line, gas squirts from it as if the fuel-tank is under pressure.
Once it's running, it typically runs fine until a day or so later when I go to use it again and I'm right back at square one. What do I need to replace to make this stop happening?
04-11-2010, 11:04 PM
Sounds like the needle valve in the carb is not closing properly, allowing gas to seep into the cylinder. A carb cleaning is needed, remove, disassemble, spray all holes, openings--especially the needle seat area. Blow out with low pressure compressed area. Reassemble and see if this solves the problem.
04-11-2010, 11:49 PM
gas squirts from it as if the fuel-tank is under pressure
I would say that is the problem. The fuel cap is not venting correctly. Pressure is building up and forcing gas past the needle. Try a new cap or leave the cap a little lose from one day to the next to see if it is the cap.
04-12-2010, 05:26 PM
I don't think Echo gas caps are vented--at least the ones I've used/worked on. They have a 3rd line that does to a vent valve (little white thing)--it's a one way valve, allows air in but not gas out. Yes, that means pressure builds up in the tank, but the needle valve is suppose to hold this without allowing fuel into the carb.
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