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Explain the advantages of four-stroke engine over two-stroke engine
Mercury has made the 50 in both 2 cycle and 4 cycle. If it is oil injected and there is no oil that you change and no oil filter it is a 2 cycle engine where the oil is mixed with the gasoline.
What is the Mercury 3.5 Hp four stroke valve clearance?
in my opinion a two stroke engine is a better quality engine as compared to a four stroke engine!
two stroke
Four stroke engines are quieter than two strokes, but have less power.
compare the two stroke and four stroke engine in power output and thermal efficiency?
In a four-stroke engine its called the compression stroke
The four-stroke engine produces 1 power stroke for every 720 degrees of crankshaft rotation.
A four stroke engine produces power every other revolution. The term stroke refers to a directional change of the movement of the piston. Taking this into account, the piston moves twice downward and twice upward every time the engine produces power 2 + 2 = 4
You can use four stroke oil for a (very) limited period in a two stroke engine in an emergency. However it is not formulated for two stroke engines and is not recommended.
No it isn't fatal, but it would smoke quite a bit, because a two stroke engine needs two stroke oil mixed in the petrol, and a four stroke just needs petrol.