Hey guys, So last week I bought myself a Ninja 250. This is my first ever motorcycle. It really needed an oil change and I wasn't willing to pay $100 to a shop to do it for me when I could do it myself for around 40 buck. I drained all the oil and everything was going fine until it was time to put the new oil back in. I was real cautious because my brother owned a 250 before and he put too much oil and the engine started burning it. So I've filled about 1.2 or 1.3 litres in and I can't see any oil in the oil window. This got me a little worried so I decided to start the bike and let it run for 2 or 3 minutes. I was hoping maybe the engine oil would circulate through and come back down and then I would be able to see atleast a little bit of oil. After running the bike, my friend decided to take it for a spin around my underground garage for like 20 seconds. After his ride, I turned off the bike and left it for another 5 minutes and still couldn't see any oil. The next day I came back and I knew I had to put around 1.7 litres in so I came to put the rest in. Once I got past 1.4 litres I started to see the oil window fill with oil and I was relieved. I filled it up to around 1.7 or 1.8 litres and ran it and everything seemed fine. My worry is when I started it and let my friend take it for a ride with a little more then half the oil the engine needs, did it damage my engine or any other part of the bike?