Where's the engine output shaft with the JGY-370 snail reductor?

The output shaft shall be at the side of the reducer and perpendicular to the longitudinal axis of the cylindrical electric motor. Place the coupling on this side shaft, then continue in the same axis to the separately supported drive shaft. It's not on the head of a cylindrical engine. The weight and lateral forces take over the bearings and frame. The models are reconstructed according to photographs; the position, length of the shaft and fixing dimensions are checked on your product before manufacture.