800 Runs strong and then dies...

Ignintion switches do not cost much for these tractors and are available at most good farm supply stores as well as NH. I expect that your problem will go away if you replace yours.

Dean

As a general rule, yer carb has about 5min of fuel before the engine starts missing and backfiring and quits. Clogged fuel filters will still dribble gas into the carb and fill the bowl up innna'bout 15min. Your tractor should have 3-filters. Secret one hidden upinside the gastank and "melts". Replacement is by complete replacement of glass fuelbowl valve. Then there is the finefilter ontoppa the glassbowl. That should be intuitive obvious. Then there is the 3rd filter hidden inside the carb elbow. Do I haffta tell ya what to do?

But heres the deal, SUDDEN engine stops are ELECTRICAL. Ford ignition switches are NOT as robust as we'd like'm to be after 50yrs. And is the most obvious suspect in your reported problem..... ....respectfully, Dell

My first guess however is fuel flow. ( or no fuel flow.. like a clogged / stuck float.. that fills the carb bowl slowly.. then the tractor starts.. and the carb bowl empties and the tractor dies..)

Could also be clogged filters.

You did replace your ignition switch right?

Soundguy