A mate of mine just brought a new trainer but it came with very little in the way of instructions for the engine so we dont even know what make it is.
It has an M 46 sticker on its side and has a round cylinder head which is painted black on top. I know its not an OS a Super Tigre or a Thunder Tiger, and its obviously a .46 size.
The plane itself was your typical 40 size trainer called a "World Star".

Does anyone know what make this engine is?

Thanks,

Troy.