Moved to workshop.
2 strokes use 2 kinds of oil, gearbox and 2 stroke.These are very different and do not mix.
Gearbox oil goes in the gearbox and is used the same as a 4 stroke, it lubricates the cogs. There should be a cap on the gearbox which the gearbox oil goes in. Use bike oil, not car oil.
2 stroke oil goes in the 2 stroke tank, or in your case - without a pump, mixes with the fuel and gets burnt with the fuel. A common box ratio is 33:1 so for every 33 parts of fuel you add 1 part of 2 stroke oil. Some people mix in a container and pour this into the fuel tank and some just calculate it by knowing how much fuel the fuel tank takes and pour the right amount of 2 stroke oil into it.