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saw gurus......my 020T WILL NOT IDLE....

Discussion in 'Chainsaws and Power Equipment' started by Scotty Overkill, Mar 24, 2017.

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  1. Scotty Overkill

    Scotty Overkill Administrator

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    I'm assuming the accelerator pump is the little brass fitting on the metering side of the carburator?
     
    Scotty Overkill, Mar 26, 2017
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  2. cwn877

    cwn877

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    They are expensive little buggers
     
    cwn877, Mar 26, 2017
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  3. dougand3

    dougand3

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    Maybe you say it differently...but Idle/TAS/LA screw should be OUT to decrease idle. Counterclockwise = lower idle.
     
    dougand3, Mar 26, 2017
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  4. Scotty Overkill

    Scotty Overkill Administrator

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    I understand that. I'm saying with the screw turned the WHOLE WAY IN, it will not increase idle at all. I've rebuild dozens and dozens of saws, I tune them on a weekly basis.

    The idle is totally unaffected by the LA (idle) screw. Even with the L screw turned where it needs to be.
     
    Scotty Overkill, Mar 26, 2017
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  5. Scotty Overkill

    Scotty Overkill Administrator

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    Yep. And dollar for dollar, I'm still unimpressed with them. They blow through twice as much gas as my Echo CS355T, and while there IS a slight power increase, it's just not enough to justify the cost and upkeep of the saw, IMO. And that's coming from a Stihl guy!!
     
    Scotty Overkill, Mar 26, 2017
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  6. dougand3

    dougand3

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    Ah, thought we were trying to lower idle.
    I'd agree with above comments...try a new $15 carb. They're $10 if you wait for China ship. I know I lose patience after 1 rebuild and can't dial it in.
     
    dougand3, Mar 26, 2017
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  7. cwn877

    cwn877

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    If my pap hasn't destroyed his little echos I'm pretty sure you won't. I'm not familiar with the accelerator pumps on these carbs but it could let gas though if it's leaking I would think. The last saw I had that wouldn't respond to anything had bad seals.
     
    cwn877, Mar 26, 2017
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  8. Screwloose

    Screwloose

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    Does it have the internal non removable check valve ? The one that usually looks like a brass orifice ? The one everyone chemically warfare's with carb cleaner ? The one everyone sticks wires into ? The one everyone holds a air nozzle to ? The one......
     
    Screwloose, Mar 26, 2017
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  9. Screwloose

    Screwloose

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    And as far as the quality of echos top handles, they sure make lousy wheel chocks.
     
    Screwloose, Mar 26, 2017
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  10. TurboDiesel

    TurboDiesel

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    o_O

    Yeah that is hard on them...
     
    TurboDiesel, Mar 26, 2017
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  11. Bret Hart

    Bret Hart

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    Page 102.
     

    Attached Files:

    Bret Hart, Mar 26, 2017
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  12. Screwloose

    Screwloose

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    Expensive to the owner to..
    And embarrassing.
     
    Screwloose, Mar 26, 2017
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  13. Scotty Overkill

    Scotty Overkill Administrator

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    So do Husqvarna 372XP's. Don't ask me how I know that.....
     
    Scotty Overkill, Mar 26, 2017
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  14. AJtree88

    AJtree88

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    Yes, you have to remove the throttle shaft and pop the brass fitting out to reach it. There is a little brass piston in there with a rubber o-ring and a spring. The o-ring goes bad and causes an air leak. Throw the spring and rubber print away, reinstall the piston and JB weld it closed. Reassemble.

    That said, most 020T's don't have accelerator pumps, but with that saw being so old, it's probably been monkeyed with many times over the years. So who knows what it has for a carb. Check your bearing play and make sure you don't have a hole in the impulse line and it's connected to the carb housing well. I've had one that ran good on the top end, but wouldn't idle. Impulse line was barely on.
     
    AJtree88, Mar 26, 2017
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  15. bushpilot

    bushpilot

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    My Poulan PP5020AV would not come off of idle, it just went flat when the throttle was opened, and usually died. Sometimes I could get it to rev if I worked it, but then it would die coming off the throttle.

    I disassembled and cleaned the carb (twice), to no avail. Bought a new carb off of eBay, installed it on Wednesday after work, and today it cut like a champ.

    These little carbs are just not worth working on, in most cases. I still try anyway, but usually fail.
     
    bushpilot, Apr 22, 2017
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