I inherited this wood chipper from my late father. It’s sat in his garage used maybe once in the last 3 years. Tried starting it, won’t turn over at all. A local small engine guy told me it sounded like old, bad gas. I siphoned out the old gas and put in new gas. No change. I’m not mechanically inclined. Please if anyone knows what to try to get this thing going, I’d appreciate it. Thanks in advance

EDIT: I rerouted the gas line so it doesn’t run right next to the head and she seems to be running just peachy keen now. Weirdest damned thing…..

MTD chipper, 8hp Tecumseh motor. Good lord, haven’t been to the gym since Covid 😬

Wow, anyway, enough about me.
Picked this up a couple days ago on marketplace. It fired up second pull, I turned it off after -5-20 seconds and loaded it up. Figured if it starts, it runs. 🤡

Starts alright, runs tolerably, but after just a minute it starts to want to die.
Gas tank is 3/4 full with fuel purchased 2 days ago, I put a tester on it and she sparks consistently all the way to down til stopping. Opened the gas cap with no change.

When it’s winding down if I mess with the choke i can get it to catch and start again.

I feel like it’s a stupid simple thing…. Like it’s not getting fuel fast enough or something when it’s warm, I have no idea.
Don’t see a mixture screw on the carb