Wonder what company writes their liability insurance?
You didn't read the fine print at the bottom of the picture. heheehe
Disclaimer
Harley-Davidson ® engines were not developed
and have not been tested or approved for use in aircraft.
Harley-Davidson Motor company disclaims any and all responsibility
for damage or injury arising from use of its engines in these or any aircraft.
By using this engine in an aircraft you agree to hold Harley-Davidson®
and or Ray Air harmless in the event of accident or death.