Garelli Oil Injector
Here is a neat idea. I am suprised that it is not very common on mopeds. I bought a Garelli with an "Oil Injector". It is not as sexy as it sounds. The device pictured below is basically an oil tank with an internal MANUAL pump. The idea is that you can carry a fair amount of 2 stroke oil (not in you backpack) with you to manually meter and inject when it is time to fill up. To use it you fill the tank partially with gas, then inject the proper amount for the amount of gas you are buying. Next you install the gas cap and shake the ped to mix the oil and gas. You then top off the tank (and give her another shake for good measure.