Question about Ryobi Backpack Blower 25.4cc

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My ryobi 25cc leaf blower rarely can make max rpm. runs fine otherwise, just can't get the engine speed it used to have. it is about 4 years old and hasn't seen too much use.

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First thing to check is the screen (spark arrestor) on the muffler if it has one. When these get clogged units often will idle fine, but not be able to rev up much or at all.

If the screen is clogged, clean it and reinstall it, should work fine then.

Posted on Jun 09, 2010

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It will cut out when i give it full trottle,it idles just fine .its a ryobi 31cc 17 in


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Basics to check:
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b) is there spark

2) Muffler remove for inspection
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b) inspect cylinder wall/piston as the flywheel is slowly rotated
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1) spark plug
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3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
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Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
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Remove the muffler and you should find that it will run at full speed. The muffler is clogged with carbon. You will have to replace the muffler since it is sealed. If you want the muffler cleaned you can contact southern supply company at 205-833-2525 or email them at

southern.supply@mindspring.com and I feel sure Jason or

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