32:1 is best
The old F series on this deck was to badly damaged to repair plus it was missing many parts so i purchased a engine new old stock for 150 shipped. It is a Tecumseh TVXL840 made in 1988 and has the lawn boy tapered shaft. I only received it in the mail this morning and got it put it together after filling it with some break in fuel mixed at 24:1 i primed it 5 times and it fired first pull. I plan to run 3-4 tanks then switch it to 32:1 i am currently using echo red armor oil which is really good oil but expensive.