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 2014 Harley-Davidson Ultra Limited (above) is one of three Harleys featuring Twin-Cooled engines for 2014. Harley-Davidson dropped a bomb on the motorcycle world by announcing that several non-V-Rod bikes in their 2014 lineup will feature liquid-cooled cylinder heads for the first time in 110 years.