If it wriggles, its sperm. Also, it should taste slightly salty.
Hold a ultra violet lamp over the stain and if it glows then it may be sperm.
Discharge should be yellowish in color. Sperm is white. If you have discharge, it's time to see a doctor.
Semen can be from transparent to white but there's always sperms in there. Each sperm is incredibly small, you need a microscope to see them.
The marks are on the bottom pulley , you may need to get a white marker to hi light it , so it will be easier to see with a light .
If you look on the sides of the cams and the puleys that involve the timing belt you should see little white dots. that indicates the marks.
Semen is the clear while sperm is the white. The semen protects the sperm as it enters the vagina
Sperm does not contain red and white blood cells
it some thing on the lens im sure what its called but it marks the middle =)
Open the covering for the belt and look closely at the metal area around where the teeth of the belt are. There should be some white markings. There is not much spacing between the belt and the metal area where you will see the marks. The marks were hard for me to see at first.
Semen is the collective of sperm and seminal fluids. Clear semen has very little or no sperm, hence its lack of colour. Semen that has sperm in it, will be white.
They are more visable on tanned skin. Stretch marks don't tan, because they lack the melanin that your 'normal' skin still has. Stretch marks are basically a scar in a way - so look at any scars on your body and see what they look like when you have a tan, white? well that's the same for stretch marks.
No, semen can be clear, cloudy, white or even yellowish and still contain viable sperm.
a damp cloth works...depending on how bad the white marks are