I had an issue with a 91' B&S 18 hp twin cylinder that would stall when it was hot and wouldn't start until it was cool again...at the time when it wouldn't start, I didn't have spark.
I put a new coil on it and all seemed well...today I was mowing and it ran great, I shut it off to get a drink, and 15 minutes later when I went to start it, it wouldn't. I have spark(don't ask how I know, lol). I put a set of those E3 spark plugs in it, maybe I ought to go back to the oem units...
It's getting fuel, spark(on the boots), and the air passages/filters are fine, and ether didn't help.
What do you all think?