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2. Automatic lubrication - Wikipedia

   en.wikipedia.org/wiki/Automatic_lubrication

   A tube ensures flow of oil from the reservoir to the oil pump. This system is commonly used for motorcycles as it eliminates the need of pre-mixing fuel and two-stroke oil. Vespa is an example where pre-mixing of two-stroke oil is required. Automatic lubrication was introduced for motorcycles by Velocette in 1913. [1] An example of application ...

3. Two-stroke oil - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_oil

   Unlike a four-stroke engine, the crankcase of which is closed except for its ventilation system, a two-stroke engine uses the crankcase as part of the induction tract, so oil must be mixed with gasoline to be distributed throughout the engine for lubrication. [1] The resultant mix is referred to as premix or petroil. [2]

4. Rotax 582 - Wikipedia

   en.wikipedia.org/wiki/Rotax_582

   The Rotax 582 is a 48 kW (64 hp) two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating in day visual flight rules. [3] Production of the engine ended at the end of 2021. [1]

5. Gasoline direct injection - Wikipedia

   en.wikipedia.org/wiki/Gasoline_direct_injection

   An added benefit of the system was having a separate tank for the engine oil which was automatically added to the fuel mixture, obviating the need for owners to mix their own two-stroke fuel blend. [45] The 1955 Mercedes-Benz 300SL also used an early Bosch mechanical GDI system, therefore becoming the first four-stroke engine to use GDI. Up ...

6. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   It is also used in some trolling motors for personal watercraft. In this design, motor oil is blended into the fuel to lubricate the cylinder and reciprocating assembly, in ratios such as 25:1, 40:1, or 50:1 fuel-to-oil. This two-stroke oil is burned during combustion and contributes to emissions and inefficiency. [10]

7. Two-stroke power valve system - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_power_valve_system

   A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...