I own a yard machine 17.5 hp tractor & it will start & run fine for awhile then all of a sudden it will die and have no spark let it sit for an hour or 2 then it will start and run fine also sometmes after its running if I shut it off it will not re-restart if I mow the lawn have to keep it running its getting annoying and can't trust it to stay running long enough to mow the lawn when it dies I checked for spark using a sprk checker and it has no spark I'm an auto tech so I have general knowledge of these things just not small engines any ideas what could cause this issue?

Hi,
Time to get the numbers off the engine and go to your local B&S dealer for a replacement armature(ignition coil.)
Peace,
Clarke

Hi,
Time to get the numbers off the engine and go to your local B&S dealer for a replacement armature(ignition coil.)
Peace,
Clarke

Coil? Okay I was wondering about that, if that was the cause just didn't want to throw parts at it you know lol. It has 2 plug wires is there 2 coils or just one that has two wires on it for each plug?

Adjust the valves. Change all battery cables including the cable to the starter, use a heavier gauge cable.