I know that manufacturers recommend WOT for air cooled yard/garden engines. And most people take that at face value. Manufacturers do that to cover themselves. And for the average person, that is the safe way to operate.
I have been operating machinery for over 60 years. I am factory trained GM mechanic, A&P aircraft mechanic, as well as several other mechanical pursuits. Being able to judge ambient temps, engine loads, etc, allows me to take care of an ageing piece of equipment, and still get the max performance from it. Old machinery and old men are a lot alike. Don't push us too hard and we still have some work left in us.
I appreciate the concern and helpfulness of you folks. I don't take lightly, any help, advice, etc. I don't recommend that everyone, do as I do.
My 149 seems to be performing quite happily, and that makes me happy.
