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Echo blower motor will not rev.full throttle--only about half

Have checked the muffler,cleaned the air filter

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  • hammondt15 Dec 27, 2008

    I have the same problem. I have a Echo PB-261L. Has blue spark, Gets gas, New carburator, New fuel filter and hoses in tank. When all new parts were put on, ran great at full throttle. Now will not run full throttle most of the time. Acts like it is starving for gas but has a solid primer of fuel. No leaks at carburator or hoses. Choke it to get it going. When hot, harder to start. Still has blue spark. Boggs down just like it starving for fuel. Pulled muffler and cleaner port from carbin. Blows excellant air when running.

  • josh1111 May 11, 2010

    can you adjust the carb screws, if so how many screw are on the carb?

  • John McKinney May 11, 2010

    just a suggestion to you guys. i know it's a long-shot, but have you tried checking your throttle cable? this could be broken and/or stuck. let me know if this helps at all. thanks.



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Check the insulator block and associated gaskets behind the carb. Sometimes the insulator block crack and reduce the amount of vacuum to the pulse diaphragm.

Posted on Apr 10, 2009


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Check the Exhaust Port and Muffler.
>>The Following is a Basic Instruction File for Doing a Diagnostic on the Engine for this Problem. Any Input is Appreciated.
>>**Remove the Muffler and Make Sure the Exhaust Port is Clear.
>>If it is, then Try to Start the engine with the Muffler Off.
>>If it Starts and Runs Properly, then Clean the Spark Arrestor Screen in the Muffler or Replace the Muffler if Required.
If the Exhaust Port and Muffler are Clear, then
Check the Carburetors Metering Needle Valve.
If the Metering Valve Plunger (on the Carburetor Metering Jet Diaphram) is Set too Close to the Needle Valve Actuator Arm, then you will have this Problem.
I Require the OEM and Model Numbers Off the Carburetor to be of Better Assistance to you.
Please, Do Not Hesitate, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck


jbridger (John)

May 09, 2009 | Garden

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