In large bowl, stir flour, baking soda and cinnamon. Add sugar and stir well.

In medium mixing bowl, beat pumpkin, oil and water. Add eggs one at a time, beating well after each.

Make a well in the center of the pumpkin mixture and stir just until flour is moistened.

Spray muffin tins with a non stick cooking spray.

Fill tins 3/4 full.

Bake at 350°F for 25 minutes.

Remove from tins and cool on a rack.