The ornamental design for a front side cover for motorcycle, as shown and described.
FIG. 1 is a perspective view from the right side of a front side cover for motorcycle.
FIG. 2 is a perspective view from the left side thereof.
FIG. 3 is a perspective view from the right side thereof.
FIG. 4 is a perspective view from the left side thereof.
FIG. 5 is a front elevation view thereof.
FIG. 6 is a rear elevation view thereof.
FIG. 7 is a right side elevation view thereof.
FIG. 8 is a left side elevation view thereof.
FIG. 9 is a top plan view thereof; and,
FIG. 10 is a bottom plan view thereof.
The portions of the motorcycle shown in broken lines are for the purpose of showing environmental structure only and form no part of the claimed design.