* Gasoline (petrol): This is the primary fuel source.
* Two-stroke engine oil: This oil is specially formulated to lubricate the engine's moving parts and to provide a seal between the piston rings and the cylinder walls.
The gasoline and oil are mixed together in a specific ratio, which is usually specified by the engine manufacturer. The ratio can vary depending on the engine's size, type, and intended use.
It is important to note that two-stroke engines do not use pure gasoline. They require a pre-mixed fuel that contains oil for lubrication.
Here's why:
* No separate oil sump: Two-stroke engines do not have a separate oil sump like four-stroke engines. Instead, the oil is mixed with the gasoline and injected into the combustion chamber along with the fuel.
* Lubrication needs: The oil in the fuel mixture lubricates the piston, crankshaft, and other moving parts of the engine.
* Sealing the combustion chamber: The oil in the fuel mixture also helps to seal the combustion chamber, preventing the escape of combustion gases.
Using the correct oil-to-gasoline ratio is crucial for the proper operation and longevity of a two-stroke engine. Using too much oil can lead to excessive smoke and fouling of the spark plug, while using too little oil can result in engine damage due to insufficient lubrication.
