Question about Echo Pb265l 25.4cc Gas Powered 158 Mph Low Noise Padded Backpack Leaf Blower

3 Answers

Blower bogs down and kills at full throttle

Cleaned carb, cleaned exhaust screen, cleaned filter, checked plug proper spacing. starts on the second pull every time, but soon as I turn the throttle all the way up it bogs down and kills. almost like it got flooded but still starts up two pulls later

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  • matthew hawkesworth May 24, 2015

    Pull fuel lines out and blow thru with compressed air and get all the gunk out, sounds like a fuel blockage. Mine was the same and I did that and now it runs beautiful

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3 Answers

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Check the following, then clean or replace:

  • Fuel Filter - Located IN the fuel tank
  • Spark Plug
  • Spark Arrestor - at muffler port, creates resistance of exhaust flow, engine then bogs
  • Carburetor - may need a rebuild kit
Then watch this...

and...

Posted on May 19, 2015

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  • 7 Answers

Ignition wire fixed my Stihl backpack when it did this last fall

Posted on Feb 07, 2015

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  • Echo Master
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Remove the muffler completly and check the exhaust port itself has not carboned up, if the port is clear, it may be the muffler itself is blocked, try running the machine with the muffler loose, if it revs normally all be a bit loud change the muffler.

Posted on Apr 01, 2013

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Posted on Jan 02, 2017

Anonymous

  • 5 Answers

SOURCE: Echo Blower dies out when full throttle

Find the fuel air mixture screw located by the carb and turn it so the moter starts to slow down then turn it so the blower runs smoothly this should keep it from dying out

Posted on Nov 23, 2008

Anonymous

  • 1 Answer

SOURCE: echo gt 200r trimmer will bog down once the

If the fuel lines, spark arrestor, sparkplug and carb check out OK, (as mine did) and if it will rev up with the choke partially on, here's the fix:

There is a small plastic plug pressed into a slightly larger brass plug located in the body of the carburetor, surrounded mostly by the white plastic primer housing (between the fuel in and out hose connections). Pry out the plastic plug with a pick and you will find the high-speed adjustment needle. You'll have to back it out a bit to richen the mixture. Using a tiny screwdriver, start the engine and find the point where the engine runs at maximum speed (don't leave it here as you could run the risk of running the engine a bit on the lean side, causing premature cylinder wear). Then, back out the screw a bit more until the engine speed starts to drop a bit. Try revving the engine a few times with the throttle trigger and if it's nice and responsive, you're all set.

Posted on Jun 24, 2009

Anonymous

  • 2 Answers

SOURCE: Echo Weed Eater bogs down.

Echo carbs have a little black plastic plug covering the High speed adj screw..CA air pulotion control bs..So get that little black blug out and give the screw a little turn open and u should be good to go..It worked for me..on a PBL 251 blower..My Echo weed wacker has the carb also..Go to Echos site and download the parts break down for your unit and look at the carb page..You will see the plug and HS,screw..happing wacking and blowing

Posted on Jul 09, 2009

Anonymous

  • 33 Answers

SOURCE: Motor not accelerate past idle, bogs down...

yes,check your spark arrestor screen in the muffler

Posted on Jul 13, 2009

Mike McDowell

  • 148 Answers

SOURCE: Echo leaf blower is bogging down at full throttle,

Have you tried cleaning the carb?

Posted on Aug 24, 2009

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Check the following, and then clean or replace:
  • Fuel Filter - Located INSIDE the Fuel Tank
  • Spark Plug
  • Spark Arrestor - at muffler
  • Carburetor - May need a rebuild kit
Watch this as well...

and...

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You still have problems in the carb highspeed circuit..some debris in the passages...
BE SURE TO USE COMPRESSED AIR TO BLOW OUT THE CARB.
(be sure to watch the inlet valve seat, you can loose it and not even know it) Blow the carb clean in a box or something that will contain any part that may be expelled during cleaning.
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Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
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
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
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a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

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Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
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
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

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Basics to check:
1) Spark plug - brown or dark brown - OK
- aluminum or silver - piston/cylinder scored
a) is it carbon or fuel fouled
b) is there spark

2) Compression - 125 to 150 psi

3) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
5) replace gaskets/diaphragms
b) use a spray carb cleaner to clean jets, holes, and body of carb


I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

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