Getting gas plug is fireing but will not run - Homelite Consumer Products Backpack Blower/Vac, Carb

Take out the spark plug and squirt some gas into the combustion chamber,replace the plug,and see if it will fire.If it fires,runs for a bit then dies you have a fuel delivery problem.If you get nothing then I would be looking at the ignition system for a bad connection,green death,(thats the corrosion along copper),low battery.etc There are three things needed to get ignition,fire,fuel,and air.One of these is not there or low.Did you clean out the new carb before you put it on? Good luck

Did you check for spark at more than one or two spark plugs? The spark is there, and the spark plugs are wet with gas? Is it flooded? Or is it getting too much gas? For a flooded engine, you know to open the intake valve wide open by holding the gas pedal to the floor, and cranking for up to 15 seconds? This will let a lot of air in and clear out most of the excess gas. Or have you tried this already?
Spark, gas, and compression: that is all that the cylinders need to run. In a well-timed engine, that is. A little gas/air mixture, then compression, then a spark is delivered and it runs. One of those three things is not right or missing for your engine not to start. Or you will have to recheck timing.

Check spark plug grounded when pulling starter to see if you get fire First. Then , spray(if getting spark at plug) starting fluid in a air intake , if motor fires, you're not getting gas so clean gas tank and carb, then , it should run fine.

check your coil(s).

When you say not firing, do you mean it's just dumping gas into the piston or the plug isn't getting spark? If it's no spark then your injector is pumping raw gas into the cylinder causing it to wash out and it will wash the oil out and cause wall scuffing making the cylinder (pistons and rings bad). If the injector is not getting fuel, it will cause the plug to keep firing with no gas in the cylinder and you truck will run with a heavy miss and get bad gas mileage.

Check that the ignition kill switch is set at "Run" and any "Idiot" measures taken by the manufacturer are all working, Then check the ignition timing is correct and that the coils are giving a full firing pulse to the plugs. you may also want to try with new plugs(just in case they are breaking down under stress).

Squirt a little gas in the carb, get a new plug in there, see if it will fire, make sure the blade is on, won't run without it. If it won't fire, squirt some gas in the piston itself and try it again. Narrow down the problem. Only so many things will make it not run. Any kill switches, safety switches on it? Check it out.

choked? bad gas. gas sitting for only a few months will go bad. Spray some WD40 into carb and try to fire. if it runs replace gas. Check to be sure keyway has not slipped

Most always this is a build-up, or manifestation of either flat or old gas, gas with too much oil mixed in, or good old H2O in the storage gas container that runs into the power tool as the supplying tank gets a bit low, or gets shaken before filling-up the blower. Completely empty the blower of fuel. If you are not capable, then have someone remove thewater and/or debris from the carb. inside the blower. or Empyt all fuel in the tank then remove the plug and give it "200" pulls, then replace the plug and give it "100" more. This will sometimes move the trash through if you cannot have it professionally repaired. Replace ALL old fuel with new, properly mixed fuel.

Ron--It sounds to me as tho the crankcase and cylinder is loaded with gas. Try pulling the plug out and cranking the blower over many times to try and try out the cylinder. When that's done, put the plug back in, connect the plug wire, hold throttle wide open, NO CHOKE, and pull it. It should eventually fire. May have to do that several times to get the old gas sucked out of the crankcase. You may very well have a gummed up carb, but that can be addressed later.