ORIGINAL: OldCoot

Although this is my first gas powered aircraft engine, I am not stranger to these engines. I have run Zenoah, Superior, and Sikk engines in R/C boats and cars for years.
I ordered the Fuji BT32B for the GP Giant Stik since it was the recommended engine.

Downside:
First thing to catch my attention was the cheesy bent sheet metal mounts. After close inspection I noticed that one was bent shorter than the other which would have resulted in about 3 degrees of left thrust if mounted without adding shims. I contacted GP and they sent new mounts which were correct.
Upon checking the engine over, I discovered that the left front cylinder bolt was stripped. Had to add a longer bolt with a lock nut on the bottom. It also had the lower crankcase bolt stripped, had to use the same fix.
The prop hub had almost 4 mills of runout and the flywheel had enough runout that it scraped the mag in one spot.
Replacement parts are on the high side.

Upside:
I was able to remove and remount the flywheel and prop hub and get the runout down to around .002.
The engine starts easily and has good power. Vibration seems acceptable and about the same as Zenoah.
The book says that it should turn an 18X8 at 7900. Mine is turning a MAS 18X8 at 9000 which is 200 rpm short of peak.
This is after 1 gal of breakin at 24:1, now at 40:1. Bel Ray H1R for breakin and normal use.
Price is fairly cheap (relatively speaking).

Conclusion:
Satisfied so far with the way it handles the airplane.
The quality issues, though, leave me with some doubt as to whether I will purchase another.