How do I change the oil on my motorcycle? I can see where to check the level, but how do I drain it? It's a Honda CB400 2011 model
The bottom of the oil pan
All of the CB series of motorcycles use a wet sump lubrication system and have an oil pan.
On your model specifically it is in the center of the oil pain and just a bit obstructed by the exhaust pipes. You will need an extension and a 17mm socket to get to the drain bolt.
The drain bolt has a magnet, so you can check to see if there is any metal on magnet when you change the oil. A sign there may be issues if you do.
Torque Speck for Drain Bolt
45Nm, or 33ft-lbs.