Question about Echo Backpack Blower PB-500T
Will not throttle up
Posted by Anonymous on
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Posted on Jan 02, 2017
If you have one of the rotary-type, non- adjustable carbs, you may have to install a diaghram kit or rebuild kit as the fuel pump diaghram may need replacing.....otherwise....you may only need to "tweak" the H-speed adjustment screw on this carb. If so, here is how Zama says to do it:
The tool used to adjust these carbs can be found on Ebay and is less than $10 if you don't rig one by your own methods.
Here is an application list from Zama so you may know what diaghram and/or rebuild kit to install.
Here is a cross reference to the carb's kits:
RB is complete rebuild kit and GND is gasket and diaghram kit.
Posted on Sep 14, 2010
The number is on the side of the recoil starter, its on a white or silver tag mounted on the underside.
Hope this helps, Matt
If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac
Posted on Dec 11, 2010
Remove the in tank fuel filter and take it apart, the felt Echo uses on the filter clogs quickly. There is still a mesh screen filter in the assembly so make sure you put it all back together and reinstall the fuel filter into the tank.
Posted on Nov 15, 2011
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My $350 Echo PB-500T seized up. I almost cried.
The solution was to drain the fuel tank.
Refill fuel tank with an 2-cycle Oli/gas mixture.
40:1 =3.2 oz to one-gallon gas, do not use Alcohol base gas.
Remove the spark plug.
Pour approximate 1/8 oz 2-cycle Oli into the spark plug hole.
Remove the pull cord assembly (4-bolts)
This reviled the crank shaft-Pull cord bracket
I use a large monkey wrench to turn the shaft (CW) Clock-wise.
Complete approximate 20 revolutions.
Reassemble, but don't install the spark plug yet.
Complete approximate 20 more revolutions
by pulling the pull cord.
Use q-tips to swab the top of the piston, as much as possible.
Install the spark-plug and crank, it will smoke for amount 7-10 minutes
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