Question about Stihl Br400 Carburetor Hd4 Walbro 42031200601 Aftrmrkt

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Needle valve adjustment for echo pb-265-L blower

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Why does my blower floor out to kiwk

adjust need and seat or make sure needld a seat or seated right soundes like not should be no need to adjust needel sounds like put in wrong flip it over metal side go on needle

Aug 06, 2014 | Echo Power Blower PB-500T

1 Answer

I can't prime my carburator on my Echo GT200r weed wacker?

clean your fuel filter and then clean your carb and replace diaphram and needle and make sure hoses are good while you are at it, the methanol causes needle and diaphram to get stiff and gum up not letting fuel into carb when primed, replace your primer blb while at it

Sep 17, 2011 | ECHO, Inc. PB-251C Handheld Blower

2 Answers

ECHO PB-250 blower new used one time carb.needs adj.can this adjusted

Your machine has a rotary-valve diaphragm type carburetor. These carburetors typically only have an adjustment for the IDLE speed with an available option to control the main jet with an adjustable mixture needle.

Here is the info on the Zama rotary-valve diaphragm carburetor.

Some have a small adjustment needle in the center pivot of the rotory part, under a brass plug...but most have nothing. Many end users and techs are complaining about the non-adjustable carbs. They are made this way to meet the more stringent EPA emissions codes that are getting tougher each year.

Jul 03, 2011 | Echo Gas Blower 135 MPH390 CFM Blower...

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Echo pb251h. Blower will only stay running if i pump primer knob. Carb was rebuilt, changed fuel filter, checked exhaust port, insulater appears to be ok, compression test around 100psi,new fuel lines and...

when the carb was "rebuilt" Did you pull out the screen and clean it out and also did you pull needle and diaphragm out and clean it out good, because if the needle is not working or the neoprene tip is swollen your needle adjustment will be out of whack,sometimes carb cleaner will make it swell up to where it won't open enough to get fuel through it....suggest you replace the needle and adjust your height of the tab to flush with the body of carb and make sure you have a good diaphragm in it along with new check-valve diaphragm, then make sure your primer is hooked up right should be pulling fuel through the filter to carb and through carb and back to tank,your problem is definitely in the fuel system, keep trying different things you will figure it out

May 26, 2011 | ECHO, Inc. PB-251C Handheld Blower

1 Answer

My Echo Blower Model: PB 755 T was working fine I stopped it to put more gas and now it won't start,

spray carb clean in the carb, just a shot with throttle all the way open then try starting, If it fires then you have a fuel problem,like maybe the filter in tank dirty or dirt made it to carb or needle valve is stuck in carb.

Apr 02, 2011 | Echo Gas Blower 204 MPH765 CFM Blower...

1 Answer

Gas in echo trimmer air filter

your needle valve in the carb is stuck. carb needs rebuilding

Sep 18, 2009 | ECHO, Inc. PB-251C Handheld Blower

1 Answer

How do you set the needle float for the gas

using flat edge placed over needle lever,bend till even with flat edge and when you push down on this lever it should just start to lift the needle.

Jun 14, 2009 | ECHO, Inc. PB-251C Handheld Blower

1 Answer

Echo polesaw won't pick up gas, took carb apart still no run.

Vacuum test the fuel line and check the fuel filter.
The fuel line could be cracked.

Mar 25, 2009 | ECHO, Inc. PB-251C Handheld Blower

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