ECHO, Inc. PB-251C Handheld Blower

No high speed adjustment

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The spark plug gap for all ECHO products is . 024″-. 026″ or 6mm-8mm.
5. The fuel is fresh ( > 89 octane : RON ) and properly mixed at 50 : 1 with “ISO L-EGD” or “JASO FC/ FD” 2 stroke oil. 6. All blower pipes (fan head type) are installed for proper engine loading.
Locate the idle mixture screw and turn it clockwise until the needle lightly touches the seat. Then, turn the screw counterclockwise 1-1/2 turns. If your carburettor has a main jet adjustment screw at the base of the float bowl, turn the screw clockwise until you feel it just touch the seat inside the emulsion tube.

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Where is the coil on a pb255 hand blower – Echo 135 mph 390 CFM Gas Blower PB-250
ANSWER : Flollow the plug wire it will take you too the coil

Echo 251 pb leaf blower doesn’t blow/vaccum at full power. Very weak. Took everything apart and cleaned, still have problem.
ANSWER : Check to see if their is a little screen in muffler cloged

Echo pb-251 will not rev up – ECHO, Inc. PB-251C Handheld Blower
ANSWER : Throtle cable has come off from the carb

I bought a new echp pb-251 blower last year. towards the end of last season the blower seemed to run sluggish. I attributed it to the cold weather and stored it properly with fuel stabilizer. Now here in Texas our lawn equiptment really doesnt stay put up for very long, and i use my leaf blower to round up my leaves during the winter. — Long story short, I had a problem with power and replaced the spark plug and air filter with no good results. I took the blower back to Home Depot and they charged me to have someone look at it. It was returned running fine with “carbureator adjustment screw out of adjustment as the Problem found”. Now it is two weeks later and after only using the blower one time i am having the same problem again. it starts and runs but has no power when you pull the trigger. Where is the adjustment screw on the pb-251 so that i do not have to turn it in to get charged for something that should work again. Echo I love your products I have bought three weedeaters from you and three blowers ….very dissapointed in this one.
ANSWER : Hi, there is a wire screen in the exhaust outlet that blocks up with carbon deposits. It can be removed and cleaned with a wire brush. If blocked it will give you the problem you have and also make the blower quieter than it should be. Regards Phil.

Echo pb-250 starts but willnot stay runing – Echo PB 250 LN Handheld Bower
ANSWER : Turn low speed screw on cab out 1turn when it stars adjust it to get best power

Carb screws need adjusted i need to know the settings
ANSWER : Hi. Lightly seat the low screw and bring it out one and a quarter turns. Lightly seat the high and bring it out one turn. Adjust idle screw to suit. Regards Phil.

BLOWER WILL START WITH FULL CHOKE, BUT SHUTS OFF WHEN TRYING TO REDUCE CHOKE.
ANSWER : I’m having the same problem. My suspicion is the carborator requires gas/air mixture adustments. This requires a special carb adjustment tool – called a Long Single D Tool. I will try to have my fixed very soon – 1 week…I’ll try to keep you posted.

How to install a throttle cable on an ECHO PB-251 blower
ANSWER : Throttle cable ??? should actually have a throttle rod that goes to a very short piece of cable. and this cable only goes from the carb to the throttle rod. the cable is actually easy to replace. it’s only 3 inches long. the throttle rod or trigger requires removal of one side of the handle.