Answer: A level surface and the ability to hold the motorcycle at its balance point while you eye the sight window or check the dipstick is essential. Also, a clean rag handy if you have a dipstick.
Warm up the bike, shut it off and let sit for a couple of minutes before taking a reading. Use a helper, center or bike stand to keep the bike level.
Important for bikes with a dipstick. After removing and cleaning the dipstick, place it back in the hole – do not screw it in. When you lift it out, check oil level with the dipstick sideways. This stops the oil from flowing one way or the other on the stick. Always be sure bike is at the balance point straight up and down and never check oil level on the side stand.