When I serviced my bike I topped the oil up and started the engine for a few minutes and then the oil level was sat perfect. I noticed once the bikes been running for half an hour the window completely fills and stays full for a while, I've ran the bike for a few weeks with no problems.
Shud I drain some oil or just leave it?
i have now ran 2500 miles with it like this lol :eek as in the morning after a run it always settled to the correct level.
I'm using Castrol power 1