I pour it in until it gets to the correct level in the site glass. After that, I start it and let it run for a few seconds then shut it down.
The level, after doing that above, will drop below where I filled it to originally. Add more until the correct level is reach.
Only need 4 quarts. I change oil filter every time.
Monitor level/check level after bike cools down after first full ride.
If it’s too full, you can remove drain bolt to let some oil out and quickly reinstall it.