The ornamental design for a motorstator, as shown and described.
FIG. 1 is a perspective view of a motor stator;
FIG. 2 is a perspective view thereof showing the opposite side;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is a sectional view taken at line 9-9 in FIG. 5.
The broken lines showing on the drawing disclosure are for illustrative purposes only and form no part of the claimed design. The dot-dashed lines indicate the boundary between the claimed portion and unclaimed portion.