(Part 1 of 3 because of forum limit to 1,000 characters): Clint asked me why I wanted 120 horses for a single place. I replied that it wasn't the hp, but the fact of an engine just barely working hard (maybe using only 70-80 hp of the total) 1. should basically last forever 2. would get great gas mileage, and the savings over the fuel and oil consumption of a two stroke would PAY FOR THE ENGINE!
3. With all that reserve power, I could go farther by carrying extra fuel tanks, not having to worry about finding fuel as much.
This engine that I purchased from Racer was for $2,500. It had some 8,000 miles on it from the sled, just like Racer's on his Air Command. Because Yamaha says the first maintenance is at 20,000 miles, and that is a valve adjustment, it sounds like great alternate to Rotax's two stroke, and to their four stroke 912/914 engines.
Ron Awad's Genesis was around $3,500, and that was for an engine that only had about 275 miles on it.