Question about Echo Inc. 25.4 CC Backpack Blower

1 Answer

After getting hot the blower will blow very hard at full throttle and then loose power and then back to full throttle after 2-3 seconds. It does not do this when it first starts off cold. I have relaced the air filter and spark plug. What else could be the problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 486 Answers

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

Posted on Nov 16, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why is there no power to A/C control panel?

no less than 6 related posts.

2.5L or 4.0L engine?>

why not post the full symptoms. and year of car.

if i read all 28 days of posts, i see its a 1988 !

and books on that old dog are hard to find (sold mine)

had 2 , 1988s, matching pair, xj and Comanche.

drove them to death. 500k total, miles.

I know 88s very well, too.

the problem is finding facts on this relic, french ECU car.

but it's online, at mitchells and alldata. and others

to work on this old car, why not get a $15 subscription to mitchells, DIY.

and not work blind and in the dark.

so ill help you.

A/c Dead or more clearly the panel is dead.

doe that mean just a lamp dead, but a/c works or not

why not post all that works and does not.

does car drive ok day and night??????

anything else dead?

ok i see post 5 says everything else is fine

but then says, heat is dead.

but does the blower blow?

helping you with such sparse 1 liners. is near impossible

try this, put a full question in a text file with notepad.

then past it here.

like this.

Hello: my blower is dead, in dash why?

or blower good and heat dead, but engine is 180f , why.

or blower dead and heat dead parked, but work moving

that is in fresh air vent mode, i get heat and a/c

my A/c clutch on my compressor, is active or not.

works or not./??

ive lots of questions, here ill ask them

does the heater fan (blower) blow on HIGH/.??


no, blower fuse 25amps blown open

yes, but not low speed, then blower resistor block , burned out.

does the heater water valve open and close proper

with dash temperature lever action ( takes a hand vacuum tool to test this......!!!)

lets work heat. since that is 10x more easy than A/C

1: engine hot, 180F +?

2: water valve opens, with lever? sends hot water to core in cab.

3: both core hose get real hot 180f hot? yes/no

4: does fan blow on high? yes/no

5: ever flush the core out. so it clean inside,

do so at ends of hoses, not at core. or damage is easy to happen there. (ask why and how)

ends means engine side.

6: do the dampers move correctly via cables and vacuum.

you said no power to panel, please say what that means.

blower dead or what?>


this is the vacuum operated hot water valve.

easy to test, heat off , it goes closed, heat max

it opens max. can be seen to work, see lever below?


this vacuum slave actuator (called motor , by motor heads)

must move when you slect modes, if not say so. ask for tests.


and last the HVAC drawing. to arrow is fuse. blow.

bottom arrow is P , for clutch.


tell more get more

1 lines symptoms are no good.

tell the full story. and WIN!

Mar 03, 2016 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Echo pb 265l backpack blower bogs down at full throtle

Hi ryan...
You still have problems in the carb highspeed circuit..some debris in the passages...
(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.
Please take time to rate me

Mar 31, 2013 | Echo Garden

1 Answer

Ryobi blower stalls when not at full power

there is a gasket right under the prime plug most likely that is bad

Sep 20, 2012 | Ryobi Garden

2 Answers

I got a 1995 s420 blower blows good then slows down almost to a stop , ive replaced the resistor it worked for like 2 min. blew hard then i think the blowermotor resistor burned out and completely stop...

I would agree. If you wire it direct the wires should not get hot.
The resistor will get hot under normal conditions because the resistance is how the motor speed is controlled.
So you are probably right the motor is failing.
You could get a new motor and hook it up without installing it to compare.

Aug 04, 2012 | Mercedes-Benz S500 Cars & Trucks

1 Answer

AC stops blowing when really hot

Be sure the ac fan (mounted on the condenser) is working properly

Jun 09, 2017 | 2008 Chrysler Town & Country

1 Answer

My Homelite gas powered hand held 2 cycle blower starts but seems to run down and turn off. It automatically turns off when run on full throttle

There is dirt in the carb. You need to strip off the two covers and blow out all the passages and check that the needle under the diaphragm is moving freely in the housing. There is a small screen in the main body, see that it is clean and be careful not to loose it when blowing through the passages.

Feb 28, 2011 | Homelite Garden

1 Answer



Aug 25, 2009 | 1996 Chevrolet Blazer

2 Answers

Stilh leaf blower and it surges

How old is it?

Your brief description of the problem points toward air in the fuel lines.

Remove the engine cover, and try to see how flexible the fuel lines are. If they are hard and brittle, it's time to change them.

If you need further assistance let me know.

Apr 19, 2009 | Garden

1 Answer

Leaf Blowers types

* Handheld units are the most popular. Available in gas- or electric-powered versions, they're portable and convenient, yet powerful. These models can get heavy while using. Larger models can also vibrate a bit at full throttle. Consider the weight and balance of the unit when shopping. * Backpack leaf blowers are gas-powered. The blower fits in a harness that's worn on the operator's back. The hose reaches to the front where the user operates the throttle and blow or vacuum tube. Backpack blowers are normally used in larger areas. * Walk Behind leaf blowers cover the most acreage. Mounted on wheels, these gas-powered machines are normally the tool of choice for commercial users, but for regular homeowners, they can make short work of a home lawn. Vacuum units use a hose for picking up debris.

Aug 27, 2008 | Toro Super Blower Vac

Not finding what you are looking for?
Echo Inc. 25.4 CC Backpack Blower Logo

273 people viewed this question

Ask a Question

Usually answered in minutes!

Top Echo Garden Experts

Jim London
Jim London

Level 2 Expert

257 Answers

Roland W VanLue
Roland W VanLue

Level 3 Expert

486 Answers

Phil Walker
Phil Walker

Level 3 Expert

605 Answers

Are you an Echo Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides