20 Most Recent Echo Gas Blower 135 MPH390 CFM Blower PB250 Questions & Answers

It is very easy to flood this item mind you its easy to flood all petrol trimmers. If plug is wet simply turn the switch to off and pull cord at least 15 times you should get the engine to start coughing keep pull cord but do not turn the petrol on do not prime it either. It should catch. If it does not push the primer once and pull cord

Echo Gas Blower... | Answered on Oct 05, 2018

if there's a primer just hook the lines up. when priming if the gas is going back into the tank then its correct. if not then swap the lines.

Echo Gas Blower... | Answered on Jan 10, 2018

You probably have the needle in the carb not shutting off or going back to shut off the fuel. What you need to do is rebuild the carb and most lawn shops can sell you a kit to do that. You can see videos on youtube.com as to how to do it if you are not familiar with the rebuild process it is not hard to accomplish. The kits are around $8.00. Hope this helps.

Echo Gas Blower... | Answered on Oct 22, 2016

take it out of the muffler and put in a vise. heat it up with a butane torch get it cherry red. take a wire brush and brush off the carbon build up. should just fall off.

Echo Gas Blower... | Answered on Sep 13, 2016

Do you know how to maintain your equipment, 31 years you must be doin somthin rite, pardner?????

Echo Gas Blower... | Answered on Dec 10, 2014

Just like every 2 stroke engine. Take carb off, take off both ends and clean. Count the H and L adjustment screws turns so they can be put back the same amount of turns. Take out and clean holes

Echo Gas Blower... | Answered on Nov 27, 2014

My name is Dane and I am going to assist you in solving your problem.

Make sure the fuel is mixed correctly. Too much oil in the mix will cause problems.

If you are still having problems, you will need to adjust the high-speed mixture setting on your Carburetor jet. Turning the screw out just 1/2 turn or so should do the trick. It is not so hard to adjust the Carburetor, however you do need a special tool that is very hard to get your hands on, in order to adjust the jet screws. They don't make many engines with plain screw heads anymore. The newer Carburetors are factory set lean so they can pass emission standards. If you have a local dealer, they should adjust the mixture for a couple of bucks. Before you take it in to the shop, make sure you haven't left old fuel in it for a long period of time and gummed those jets up. Sometimes an engine just needs to run in order to clean the jets out. If this is the case, just replace the fuel and get it running and work it normal for a tank of fuel if you can.

Just a TIP: Always mix your fuel with an approved fuel stabilizer. Fuel begins to go bad after a few months and that's why many people have fuel problems in the spring.

I hope I've helped. If you found this reply useful, please leave me some THUMBS UP, if you feel I

Echo Gas Blower... | Answered on Nov 24, 2014

I would say that Daren is on the best track here for repair. Myself i agree with the fact that your carb has some sort of blockage. Start with a good carb cleaning. Good Luck....

Echo Gas Blower... | Answered on Jul 09, 2014

Two very good answers, if you go to use the 50:1 ratio you will probably not be wrong most new stuff mixes with the 50:1 ratio these days if your not comfortable mixing the gas, Menards has premixed can for sale, as do most of the big box stores. Very good for novice mixers who don't want to keep alot of fuel around and let it go bad. Great alternative to mixing!

Echo Gas Blower... | Answered on Jul 09, 2014

Consider the flywheel. This model uses a flywheel with a built in key. If that key is bent or broken the timing would be off which would explain the backfire. You can source a replacement unit from eReplacement parts. Unfortunately the flywheel is 44 bucks and you have to be able to dismantle the unit to replace it. These blowers cost 200 dollars new. So you have a little wiggle room here. If the flywheel is good you may have a bad coil which can cause timing problems or weak spark. But those are 76 bucks so look at the flywheel first.

Echo Gas Blower... | Answered on Jul 01, 2014

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.

Echo Gas Blower... | Answered on Apr 23, 2014

the new carburators do have adjustments but consumer is not allowed to adjust do to epa regulations find an echo dealer or echo repair tech with tools to do job everyones answer is carb clean carb clean damages diaphrams and seals in carb never use carb clean on lawn and garden equipment.

Echo Gas Blower... | Answered on Apr 23, 2014

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