Bill and Nancy Weiler wrote in message ...
BroJack wrote:
Run the 18 HP Cub Cadet 90 minutes, take a break for an hour, then the
Cub won't start, regardless of whether I use full choke, partial
choke, or no choke. Battery is OK. Next day, tractor starts fine, no
problems.

Is the engine still overheated after a one-hour rest? Any tips.

Thanx,
Jack

I just had that exact thing happen with my 20hp Cadet. After MUCH work,
the repair people discovered it was a "bad coil" or something which when
heated up failed and when cooled way down was OK. I was told that they
had to pull the engine to get at it so the repair bill was pretty high.
Assuming no shenanigans (sp?), they did a fine job and I consider the
$ worth it. The machine is over 15 years old and runs like a top!

Bill

Yep classic bad coil symptoms, check the spark when you have the non
starting problems. You want fat blue not skinny yellow.