It's very dark - bugger - guess that means I need to drain some oil - can I do that and re-use the compression washer on the drain plug?
Cheers, Rob.
You probably don't need to drain any.......it was at 2/3 before remember?
Just run it up to 2-3 bars temperature, leave on sidestand for 3-5 mins then pop it up on the centre stand......you can't have gained oil since last week, so it's just down the the variation in the way you've taken the reading today
Get used to doing it the SAME WAY everytime.......many people have many different procedures, but as long as you don't do anything silly and you do the same thing every time, it's fine.
I park up, turn off, get my helmet gloves and jacket off and dump them inside, then come back out and whack it on the centrestand.....then I chain it up, look at the sight glass and it's spot on, similar timing each go.....
If it was at 2/3 a week ago, that's good.....at least you haven't lost any significant amounts and won't have damaged the engine
And yes, you can use the same O ring.......I didnt need to change mine until it was 6 years old.
EDIT......oops, I mis-read your post, I was talking about the filler o ring.......
The drain plug one you'll get away with 90% of the time on the first draining, but then change it for the next time......I really don't think you're going to need to drain any out though.