It will run in choke gear 2 but when moved to 3 for operating speed it dies down and turns off i follow directions on blower exactly

I have attached a diagnostic sheet to help you determine what is wrong.

Check the following, and then clean or replace:

• Fuel Filter - Located INSIDE the fuel tank
• Spark Plug
• Spark Arrestor - at Muffler
• Carburetor - May need a rebuild kit

Also watch this...

and this one as well...

possibility 1) It sounds like it is sucking air with the gasoline. 2) don't rush the choke, leave it running on high with 1/2 choke. When you go to move the choke to off, move it very very slowly while the governor can catch up and raise the revs. Or slow the revs down before turning the choke off.

It is obviosly fuel starvation, have you actually replaced the fuel filter on the end of the hose in the tank? try richening the fuel mixture by unscrewing the H and L screw on the carb 1/4 turn on each, you may need a special tool to grip and turn these.

Two things to check. One is that if it will only run with partial choke then there is a slight clog in the carb. Two is if it will not rev up then you should check to see if the muffler and exhaust port are plugged with carbon. The muffler can be "burned out" with a hand held torch. Often the muffler will have a spark arrestor screen in the end of it which can become clogged.

When you go from full choke (rich air/fuel mixture in carb) to half-choke (leaner air/fuel mixture), you are requesting the engine to do more with less. This is a very common problem. You say it dies out. It is probably at that point dying out "lean" with a lot of air and not very much fuel. Several things can cause it to die out. Bad fuel filter in gas tank, debris in the carburetor fuel inlet screen (small wire mesh filter)...or it could just need the L mixture screw adjusted which afftects how rich/lean the engine is at startup. Since it is dying lean, I suggest turning the L (Low speed) mixture screw counterclockwise to increase fuel flow at startup. Turn it about 1/4 of a turn. If this allows it to keep running, then good. The L and H mixture screws have unconventional heads on them that require a special tool, but you can make your own with a small 22 gauge automotive-type female spade connector. Just tap it down onto the head of the L screw (one closest to engine below the idle speed screw) insert a flat blade screwdriver, and you should be able to turn it. If adjustment does NOT help the dying problem, then the installation of a gasket and diaphragm kit is probably the next step. Good luck, and you are not alone, there are hundreds of these machines that do this.

it may simply need the high speed jet opening up a bit (2 screws near eachother on the carb and the high speed is furthest from the engine)
failing that it needs a carb kit.... this is a serviceable item changed regularly.

eitrher a clogged fuel filter thats in the tank, old gasoline or the fuel pump daiphragm in the carb has hardened

Most of the small outdoor power equipment that I have used takes the following to start:

1. Prime 6-8 times, or whatever the manual calls for.

2. Choke the carb to full choke.

3. Pull starter rope. It may sputter and die.

4. After it sputters and dies, put the choke on 1/2. Pull a time or 2 more and should start. Run like that 10 seconds or so, then take choke all the way off.

Most of the small outdoor power equipment that I have used takes the following to start:

1. Prime 6-8 times, or whatever the manual calls for.

2. Choke the carb to full choke.

3. Pull starter rope. It may sputter and die.

4. After it sputters and dies, put the choke on 1/2. Pull a time or 2 more and should start. Run like that 10 seconds or so, then take choke all the way off.