I didn't time it but that's about how long I was on it while mowing.
Seems I bought another "project" tractor today. As with my 176, this one dies after a little awhile. Just peters out. Yes, I am a glutton for punishment, but I suppose after I fix one I'll have learned the other, since they have similar-tech Kawasakis.
Seems like the ignition gets weak; it doesn't surge/die like fuel starvation, but then again I've not yet run one of these dry so don't know for sure how that goes.
I was able to immediately restart it without a problem, but engaging the PTO was "too much" for it again, and it began to die once more. I quickly turned off the PTO and it slowly recovered and could be driven, but that's all.
FC540V - BS00
What I would dearly like to know is if the separate coil and ignition module these older tractors have can be updated to the slightly-more-more-modern type that has the ignition module inside the coil. Wiring changes, whatever, I don't mind.