Got a lawn mower that doesn't run. Its a Bolens 21" with briggs engine. Seems to have compression based on pulling force. Will start on ether and run briefly. Drained the fuel, it was definitely old and separated. Removed and cleaned the carb, the carb is plastic so it wasn't too bad, cleaned the needle and orifice, float moves way better. Spark plug didn't look too bad but replaced it anyways. Still no luck. No visible damage to blade to indicate timing problem.
What else can I try?
What else can I try?