Combine 1½ cups sugar and water over medium-high heat and cook rapidly for 2 minutes. Add pears and boil gently for 15 minutes. Add remaining sugar and lemon stirring until sugar dissolves. Cook rapidly until fruit is clear, about 25 minutes. Cover and let stand 12 to 24 hours in refrigerator.
Reheat the pears and syrup to boiling and add to sterilized jars, leaving ¼ inch headspace. Wipe rims of jars with a dampened clean paper towel; adjust two-piece metal canning lids. Process in a Boiling Water Canner. Makes about 5 half-pint jars