This is a vintage OS Max 40 radio control airplane engine with instruction sheet and an OS box from a different OS engine.
The muffler has a stripped thread on one side and will not tighten sufficiently to hold the muffler properly - will need a new muffler or longer bolt and retapping.
Good pre-owned condition, but will not rotate due to dried oil - not tested - will need to be cleaned.
There are some scratches under the engine mounts where part of the "Made in Japan'' has been removed - please see pictures.
Includes engine, muffler, instruction sheet, OS sticker sheet and a box from an OS FX 46 engine - please see pictures.
You will receive all items pictured.

Thank you for looking.  Have a great day.