I found this engine in a box of RC stuff. It was so fried that the entire engine was an amber color. Trying to start it revealed fuel-coming-out-the-venturi blowby. It's a plain bearing, ABN, 9.6oz (without muffler) engine. Since Thunder Tiger was a clone of OS engines, mounting bolt spacing matched the FP 40 and LA 40 - 46. I scored a new piston and liner on eBay and mounted it, throttle wired open, on a derelict Twister. The runs were a reliable, steady 2 cycle. I have to make a flange mounted venturi and tongue muffler before powering either my Sig Chipmunk or Jetco Dolphin with it.
Seems it will make a really nice stunt engine,
Ara
PS - The 'search' function brought up a lot of info about this engine.