All thrash and blue smoke baby 🙂
A Very Basic 2 Stroke Engine
Please note – the diagram below represents a very simple version of a 2 stroke motorcycle engine, in reality, they are a little bit more complicated!
All thrash and blue smoke baby 🙂
Please note – the diagram below represents a very simple version of a 2 stroke motorcycle engine, in reality, they are a little bit more complicated!
2 Stroke Engines
Pros
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Cons
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Simple to produce
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High noise levels
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Easy and cheap to manufacture
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High Pollution levels (caused by burning of oil with the fuel)
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Relatively high power output for CC
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Low fuel economy
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Ideal for smaller motorcycles and scooters up to 125cc due to low production cost and good power output
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Narrow power band
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Due to the way oil is burnt in the cylinder, re-bores are required every so often
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The main difference between 2 and 4 stroke engines is the way they use oil. As any 2 metal surfaces rub together (such as the piston and piston rings rubbing up and down against the cylinder barrel), friction is caused. This friction causes the metal parts to wear as they rub against each other. In order to minimise friction and wear on engine components, engines use oil as lubrication which provides a thin layer of protection between the metal surfaces.