20 Most Recent Echo Gas Blower 135 MPH390 CFM Blower PB250 - Page 3 Questions & Answers

remove black fan cover and then take schute off the blower and remove philips screws to split the case and use an impact to remove bolt and fan comes off

It could be a couple of different things. Here are my Tips for this problem:
www.fixya.com/support/r6078121-fuel_line_relacement_trimmer_weedeater

Good Luck!

Jim

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?

Try my Tip(s) out on this problem:

www.fixya.com/support/r6078121-fuel_line_relacement_trimmer_weedeater

Good Luck!

Jim

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

Sometimes, the fuel ratio is stamped on the fuel cap. Your ratio is 50:1. Echo specifies using 89 (mid-grade ) octane Here is a chart that tells you how much oil you need in a gallon of gas...Just 1/2 it for a half-gallon mix. A copy of your manual is also here.

http://support.mtdproducts.com/app/answers/detail/a_id/347/~/two-cycle-engine-fuel%3Aoil-mixture-chart

http://www.echo-usa.com/getattachment/624aee9f-103c-416c-ae9b-55fb42dd94af/PB250es1112_010410_1.pdf

There is probably dirt blocking the main fuel supply to the engine. You need to strip and clean the carb, preferably fitting a new carb kit at the same time. Clean out all the passages and orifices by blowing them out, but be careful of loosing small parts like filter screens and screws.

Have you drained all the old fuel mixture out? As well as taking out the spark plug and cleaning it should do the trick. I suggest giving it a little tuneup.

LOOKS LIKE THERE IS A PROBLEM WITH THE CARBURETOR OR THERE IS A CLOG IN THE SUPPLY LINE. IT JUST MIGHT REQUIRE SOME CLEANING AND FINE TUNING.
REGARDS.
PLZ. DON'T FORGET TO RATE

The common cause for stalling in small machines like this is the buildup of debris in the check valves of the carburetor. It is recommended to clean the carburetor in a $30 jewelry cleaner and rebuild it. You can obtain parts from a local dealer like www.arcolawn.comMake sure to call them with the numbers on the side of your carburetor.Good luck Joe 

what you need to do is remove the white plastic plug just above the diaphram gskt in the base of the carb use a pick or drill bit (but only turn it by hand) till you get it out then you will see a screw which will take a small flat blade screwdriver, start and warm up the blower then turn that screw counterclockwise till your Blower runs right on full throttle. the new equipment made now a days is set so lean for emissions that one change in the weather will affect how they run..... 2StrokeJim

may need a carb kit or the fuel lines and fuel filter replaced

I suggest change your filter in the tank if you haven't already then make sure you have a good spark plug , then try it again, try running w/choke part way on and see if it helps , if it does you need to clean your carb and don'tnt forget to check all fuel lines for cracks or broken,while you have carb apart don't forgrt to pull fuel inlet screen and back flush it and put it back in and also pull the needle and seat out and clean the orfice where needle goes and put back together, then if you still have the same problrm I would make sure your exhaust port is clean then you can adj your carb...there is only 1 setting on that carb, you have to pick the plastic(white) out and then the screw is under that just above where carb & diaphram split. Good Luck!!!

It can be removed with a pick or a small drill bit to open the center so you can dig it out, Had the same problem with mine. Fixed it and Sold it and got a 4 stroke Dolmar and love it! no more mixing oil/gas ! once you get it out will have to run at wide open throttle and prob have to turn approx 1/8 turn or until it cleans out and runs right, try both ways and find the happy medium
Have Fun!

is your spark plug getting wet from fuel? try take air snorkel off carb and give it a shot of carb cleaner if it fires you have a fuel problem if it doesent fire , and plug is wet pull plug and rollover and get excess fuel out of cylinder, and try carb cleaner again, if no luck check compression, then if good go to flywheel and see if loose

is cord stuck out or in? sounds like possible fan/flywheel cam loose on you which will cause this, take recoil off and see if it rolls over by hand with spark plug out, if so then reinstall recoil and see if pull rope works then, if not check fan and/flywheel on opposite side you will have to dissasemble case to do this, lots of screws, once there check flywheel key in flywheel to see if it has spun, if so you will need new flywheel approx$ 60.00 part hope this helps you

there is one adjustment on the carb, but to get to it you need to drill or pick the black plastic cover out that is covering it, then you can adj the The blower at high speed and also check your exh screen to make sure thats not the prob before adj. carb. you will see jet just above top carb gasket at base of carb about ctr above wher it splits for diaphram good luck

assuming that the carburetor is getting gas; the next thing you should check is that the imbeded magnet on the flywheel is clear and free of Rust and that the air gap is correct.