It is a Zenith, Carl. It has an aluminum pump. I didn't think to try with the choke out.
When it started I could only run 60 in OD. It usually can run 75. Before I made it home it would only hold 45 in OD. I took it out of OD and was able to run 60 on home.
I was thinking of adding fresh fuel to it today but after reading Bart's post, I think I'll bite the bullet and drain it. Don't know what I'll do with 8 gallons of bad fuel though.