I have one in a slightly overweightt Carden Extra. (104" 27 lbs)
It runs GREAT !
It runs SMOOTH
It NEEDS an electric starter to kick it over
(I have the big Miller attachment)
It is NOT a DA or a 3W
BUT........it's 1/2 the price, anda good running engine.
I use a Menz 24/10 prop.
Not sure of RPM's haven't tached it recently.
For price and ease of use (No ignition to worry about)
I give it an 8 out of 10