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.
The cylinders in a motorcycle engine are where the internal combustion processâthat is, how the engine generates powerâtakes place. Most modern motorcycles have a combustion process, during which the engine will: Suck in air and fuel. Apply pressure to and ignite the gases. Allow the air and fuel to combust.