Informal test..
I have been wondering about the Fuji BT64..Today I got one here to straighten...\
Took it apart, the crank is the same size as a G38, about .470...
Straightened it, put it on my test stand, ran a 22-10 Zinger prop, 6800 rpm....
Took a new G62 out of the box, put it on the stand, same prop, 6900 rpm..Crank diameter .588
Fuel 87 octane Shell, oil 32-1 Klotz, air temp 50, altitude 6800 feet. 2 tachs, TNC and GloBee..
Both engines weighed with stock mounts, prop bolt and washer, no muffler..
Fuji 5 lbs 1 oz
G62 4 lbs 15 oz.....
I hand started both, the Fuji was a little easier..
Vibration ? About the same, one man's vibration is another man's smooth....
Price ? Couldn't get on the Tower website, it's VERY slow to load....
Draw your own conclusions, I'm predjudiced...Quality ? Take one apart and look....I like the G62