Get checked out: Blood in the phlegm can have a lot of causes: some benign, others not as much. Especially if you are a smoker, any blood in the phlegm is not normal. The best thing is to see your doctor: get the blood in the phlegm and the pain in the kidneys checked out.
Four Cylinder Engines. The four cylinder engine is just like the three cylinder engine only it has the additional cylinder and therefore weighs more. As is true of any engine, more cylinders equal more power and smoother sailing. It is important to consider how much size and power you require in your motorcycle.
CYLINDERS. A cylinder is the power unit of an engine; itâs the chamber where the gasoline is burned and turned into power. (For more on what goes on inside the cylinders, see How Engines Work .) Most cars and SUV enginess have four, six, or eight cylinders.Generally, an engine with more cylinders produces more power, while an engine with fewer cylinders gets better fuel economy.For more on what goes on inside the cylinders, see How Engines Work .) Most cars and SUV enginess have four, six, or eight cylinders. Generally, an engine with more cylinders produces more power, while an engine with fewer cylinders gets better fuel economy.