135 mph 390 CFM Gas Blower PB-250

Experienced gardeners share their insights in answering this question :
Take off the muffler and run it if ok pry open the muffler and clean off the screen

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

A clogged air filter may cause your blower to idle roughly as well. Air filters can be cleaned to ensure they run properly, and should be inspected as part of your normal blower maintenance routine. If the air filter in your leaf blower is partially plugged, it can cause your engine to run, but die at full throttle.
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving old fuel in the leaf blower. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog the fuel filter and cause the engine to stall.
If your carburetor is clogged, it can cause your leaf blower`s engine to die when the choke is disengaged. You can disassemble it, clean it, and replace individual parts with a carb kit. Once your carburetor has been unclogged, cleaned, and re-assembled using the carb kit, the engine should run with the choke off.
Inadequate air flow within the system. Buildup of dust, dirt, or debris. Electrical problems, including an excessive voltage supply. Motor insulation failing prematurely due to high temperatures.
Check for a dirty air filter and replace if needed.

A clogged filter limits the amount of cool air that passes over the heat exchanger, causing it to overheat and shut off. At the same time, your blower turns on to help cool it down.

Problems include dirty filters, broken wires, poor voltage supply and faulty limit switch or capacitor. You can test your limit switch with a multimeter, and clean the blower motor`s wire coils. If this doesn`t work, you may need to replace your furnace blower motor.
Dirty Air Filters

So, the furnace is triggered to stop, then it cools down only to fire back up again. This short cycling continues to repeat until the furnace receives the airflow it needs. Dirty air filters are one of the most common reasons behind furnace short cycling.

You should look for a blower with 450-500 CFM and 150-190 MPH ratings.
It won`t go endlessly on one charge; about 15 to 20 minutes is reasonable – if you need a blower that runs longer, get a corded or gas-powered model. And it won`t demolish that huge pile of wet leaves on your lawn – but it works well with lighter debris on hard surfaces.
Many times this is caused by a plugged vent in the gas cap. Try running it and unscrew the fuel cap part way to see if venting the tank will allow it to run without the choke. If so, then clean the cap with hot water and dish soap or replace the cap with a new one.
Why would the engine only run while the choke is on or with repeated manual priming? An engine that requires the choking (partial or full) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment.
If the piston rings or the cylinder are worn, your blower will lose power. These parts can become damaged for many reasons, such as running your blower with an incorrect fuel ratio. The most common reason to replace this part is because the piston rings are worn.
Weak Airflow from the Vents

There are a number of possible reasons why this is happening, including dirt and dust buildup, bad capacitor, and an aging motor. If your blower motor is dirty or has a bad capacitor, you can call in an HVAC technician to fix the problem.

If you are using too lean of a gas mix, the pistons will not be lubricated properly, and they will freeze up in time. This happens very quickly when you use regular gas in a two-cycle engine. You will not be able to pull the draw cord to start the blower once the pistons have locked up.
If you are using too lean of a gas mix, the pistons will not be lubricated properly, and they will freeze up in time. This happens very quickly when you use regular gas in a two-cycle engine. You will not be able to pull the draw cord to start the blower once the pistons have locked up.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

My blower only runs with 3/4 choke even after warm up.
ANSWER : Look on the carb for 2 screws side by side. where those screws go into the carb, it will be stamped with an “H” and “L”. Open the screw that is next to the “H”, counterclockwise about 1/4 turn at a time with the engine running, that should solve it.

Where is the coil on a pb255 hand blower – Echo 135 mph 390 CFM Gas Blower PB-250
ANSWER : Flollow the plug wire it will take you too the coil

Blower starts and runs for 5 seconds and cuts off. Is it an oil to gas ratio. Is is 32:1 or 40:1? For the Echo PB250 gas blower.
ANSWER : I don’t think the oil-gas ratio will cause that problem. Did you check to see if the fuel lines or fuel filter is clogged?

Starts runs a couple of minutes then dies – Echo Gas Blower 135 MPH390 CFM Blower PB250
ANSWER : It
sounds like you have a bad Ignition Coil (Module). This is how they act
when they start going bad. When they get warm, they quit. Some will
last up to 20 minutes before they shut down. You can sometimes find a
used one pretty cheap at a small engine shop.Jim

Echo pb500 only runs with choke open – Echo Gas Blower 162 MPH 450 CFM Blower PB500T
ANSWER : I’m not to sure about the question. But you say it runs with the chock open. Your engine will only run with the chock open. Can you clarify?

I have a new echo PB250 Leaf blower and it will not keep running. It starts fine but shuts off after a few seconds.
ANSWER : Sounds like a dirty carb, dissamble it and rinse good with carb clean, be careful when taking the top off it that you get it back together the same spray the white center good and all little holes good. then reassemble, also try to loosen your gas cap maybe first before cleaning carb, you might have a plugged vent in the line coming out of the tank. Good Luck

Runs for a few seconds and stops running – Echo 135 mph 390 CFM Gas Blower PB-250
ANSWER : Take off the muffler and run it if it runs fine open the muffler and clean the screen inside it

Machine runs for short time then stops – Echo Gas Blower 135 MPH390 CFM Blower PB250
ANSWER : May need a carb kit or the fuel lines and fuel filter replaced