Here's the deal....going to a leaner mixture (gas to oil) will make the engine have a RICHER fuel to air mixture. It also burns better due to the lower oil content.

The chinese instructions state 16:1 because that's what you used in the olden days when people mixed regular motor oil with the gas.

Modern two stroke oils can safely be mixed at 32:1 in our engines.

Run @ 24:1 if you have any worries, but 16:1 is a waste of plugs, oil, and time.

__________________
If it ain't broke, and you mess with it long enough, it will be.