Engine for boat

FIG. 1 is a front perspective view of an engine for boats showing our new design;

FIG. 2 is a rear perspective view of the engine for boats showing our new design;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines of FIGS. 3 and 4 illustrate portions of the engine for boat that form no part of the claimed design.