This is a very low poly 7.5 hp 4 stroke engine. It does'nt work it is just a model. You need to rig it yourself but you can use it just for looks.
STL (Stereolithography, filesize: 645 KB), OBJ (OBJ, filesize: 784 KB), GLTF (glTF, filesize: 522 KB), DAE (Collada, filesize: 1.54 MB), ABC (Alembic, filesize: 631 KB)