Richard,
I am ignorant regarding these gas airplane motors but I have had quite a few Weed Wackers, a stick edger and a blower. Basically, I just fire them up new and run them wide open for years. No break-in ever. The motors still run like new after all the other parts are worn. I have kept the air filters clean and fresh fuel, that's it. Never even checked or changed a spark plug. Some of them are so old the fuel tubing has rotted and needed replacement. As inexpensive as it is, I would think a $269 20cc motor would be a Rolls Royce compared to my lawn maintaince equipment.

Does Coleman fuel provide as much power as 87 octane? Fuel cost doesn't matter to me because these engines sip fuel. If I'm not mistaken, a much smaller fuel tank is usually installed and that helps save weight.

I am getting very tempted to make a trip to my LHS with $269 burning a hole in my pocket.

Phillip