One day after blowing i had to refill gas and the blower stopped and hasnt started since.

I'm sorry to hear that your Husqvarna 125B blower isn't starting. Here are a few things you can try to troubleshoot the issue:

1. Check the fuel level in the tank. If the tank is empty, fill it with the correct fuel mixture (50:1 ratio of gasoline to oil). If the fuel is stale (more than 30 days old), drain the tank and refill it with fresh fuel.
2. Check the spark plug. Make sure the spark plug is clean and properly gapped. If the spark plug is dirty or damaged, replace it.
3. Check the air filter. A dirty air filter can restrict the flow of air, causing the engine to run poorly or not start at all. Clean or replace the air filter as needed.
4. Check the carburetor. If the carburetor is dirty or clogged, it can prevent the engine from starting. Clean the carburetor or have a professional service it.
5. Check the ignition system. If the ignition system is not functioning properly, the engine may not start. Check the ignition coil, ignition switch, and any other related components to make sure they are working correctly.

If you have tried these steps and the engine still won't start, it may be necessary to take the blower to a professional for further diagnosis and repair.

You have a fuel flow issue if the plug is dry. Put the choke on and pull it numerous times to try to flood it and see if it floods. If it doesn't than you have a blockage somewhere between the fuel tank and carburetor

If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1

did you removed the steering you might have grounded the wire for the horn , it works on a ground system i would check the wire again and make sure it's now shorted

chech small gas filter in tank, take it out , blow through it, if you canr blow through it replace it

Check spark plug and H T lead then the air filter

It sounds like it is time for a new ignition module. Get the model, type and code off the blower housing and go to www.precisionope.com. There you can look up the ignition module under OEM parts.

It may need a tuneup or ignition module replaced. Check the air filter, spark plug.
Good Day.

Once it heats up either the spark plug or the ignition module is breaking causing them not to work. I would first check on the price of the ignition module, Then decide it is to expensive to repair and send it to the scrap man.
Good Day.

Were you running a fuel mixture of 40:1(3.2 oz of 2 cycle oil to 1 gal of gas), that you mixed up before you started using it again. The unit may have had to much use on Saturday and may be burned up. Try to have a compression test done on the engine, needs to be at least 100 psi to run. If that proves to be good then you can start looking at Fresh gas mixture, a new spark plug, Carburetor rebuild or an ignition module.
HTH
Good Day.

Is the new spark plug wet? If not, the machine is not getting fuel (fuel filter, carb, etc.) If the plug is wet, you may not be getting spark (bad ignition module, short in switch/harness, bad plug (yes it does happen with even new plugs)), or flooding due to incorrect starting procedure or clogged airfilter. Stale fuel can also cause an engine not to start as it lacks volatility. If in doubt, take it to your local dealer.