the -34 manual, Chapter 3, Section 2, says:
Check the chain for excessive wear or stretch. When the chain is installed measure the distance between the chain sides at the narrowest point. This distance should not be less than 3.38-inch. If the distance is less than required, the chain has stretched or is worn excessively and the chain and sprockets must be replaced.
Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.
Pro-choice, that's a LIE, babies don't choose to die!!