Is the flywheel on time ? is the worsed answer on this question i guess.
First you must remove the muffler and look at that side on your piston if that is smooth instead of grooves . thats the best answer to make no wasting time to it , if that is grooved you may have not enough compression anymore to get a burning hot mixture of gas.
If you use special alkylat fuel aspen or motomix than it could be that there is to much fuel primered inside, remove the sparkplug and pull the trigger and hold the blower with the muffler down to the ground to release the little fuel surplus clean the sparkplug if it was wet. do not use the primerbulb anymore by the use of alkylat fuel aspen 2t or motomix if there is enough compression and alkylat fuel was used there is may be a good but even to rich H adjusdment on the carburetor but thats better then to lean adjustment (it he may shout in no case) to many rpm will overheat and damaged the piston and cillinder in a short time.
SOURCE: cant get fuel into cylinder will not fire
Carburetor may need rebuild, sound like diaphragm are not pumping fuel.
I would get a compression test on the cylinder to see if it is at 100 psi. This is the compression the cylinder needs to be at to run. You may pay a few dollars to get a shop to do this but it will tell you if it is worth fixing before you spend alot of money.
SOURCE: I have a Echo PB/251 Gas Blower which I recently
Check the muffler and/or spark arrestor screen in the muffler outlet pipe and also the engine's exhaust port behind the muffler. These are prone to carbon-clogging and the engine cannot "BREATHE" enough to reach full throttle. If all-clear in the muffler, go back in the carb and locate the inlet screen directly opposite of the inlet needle. Carefully pull it out with a pick and hold it up to a light source. If you cannot see thru it, replace it. This is another, (less) common area of obstruction.
Hope this helps,
Dolf-
SOURCE: running fine then suddenly stopped.
sounds like it has leaking crankshaft seals...or I have had them break a ring and score piston and cylinder...you can verify this by removing muffler and checking piston through there ...if no scores, I would think seals are faulty...
SOURCE: I have a 2 stroke engineer leaf blower that will
Paul, fix the old carb. They can gum up and sometimes need to soak (disassembled and soft parts removed, like the float, gaskets and inlet valve.)in carb cleaner and then be blown out with compressed air.
SOURCE: I have a PB251 Echo blower that won't start. I
I suggest cleaning the carburetor and replacing the diaphrams. The diaphrams come with a rebuild kit that has a lot of unused parts.
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