I have had this blower for 2 or 3 years never have problems till 3 days ago. I was using it and just stop running, when I try to restart it I noticed cord was stuck.
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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