FIG. 1 is a front elevation view of an internal-combustion engine, showing our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a perspective view thereof; and,
FIG. 8 is another perspective view thereof.