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echo blower--possessed?

Discussion in 'Mechanic and Repair' started by markahurley, Aug 5, 2008.

  1. EMJ

    EMJ LawnSite Member
    Messages: 200

    I have the same problem with my 2-stokes (mostly echo). I find this helps some. Let motor idle a little before shut down. Before starting pump the primer bulb 10- 20 times.. I find this helps alot. Also I will open and close the choke at full throttle without letting it die. It is a real pain in the #$$!
  2. jkilov

    jkilov LawnSite Bronze Member
    from MS
    Messages: 1,415

    I had an echo blower years back doing something like you described. Took me a long time to find out vapor lock was causing it.

    There were more factors contributing to the problem:
    - the fuel itself (someone already made an excellent explanation)
    - the fact that blower gas tanks are not protected from the sun (fuel getting hot)
    - a small air leak between insulator and cylinder
    - and echo making a low quality insulator block (the carb was always hot to the touch after running long)

    I would take a can of carb cleaner on the job and once the problems started just spray it on the carb to cool it down and that's how I noticed the leak.

    Fixed the problem by drilling a hole in the blower housing near the carburetor so it would blow a bit and cool it down. The carb was always dirty after that and I was afraid shooting debris might end up damaging fuel lines, but as simple as it was it worked flawlessly.

    Hope it helps.
  3. echoman8

    echoman8 LawnSite Senior Member
    Messages: 293

    Excellent post. Great ingenuity. I had noticed the motor changing sound immediately when the manifold was sprayed with wd40. I asked our old mech why and he said it was cooling it off. Will try

  4. SLR

    SLR LawnSite Gold Member
    Messages: 3,210

    A+ trouble shooting!

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