I ran my mower out of gas, so I could change tip it to change the oil. I changed the oil; filled it with gas. Now, it won't stay running. I put a new air filter and plug in 3 weeks ago. The mower was running great until I just changed the oil.

I always run it out of gas to change the oil.

Do you think running it until it was out of gas that something got sucked into the carburator?

Any suggestions of what to look at next?