"minimum Oil Level" Transfer

You could probably work something out, Chris. Find out what the factory recommended oil capacity (was) is. Bung the outlets of your oil tank up; pour the recommended amount minus, say 10 - 15% by volume, into your oil tank; hold the tank upright & shine a light down into it; gauge roughly where the level of the top of the oil is in the tank and slap the decal on the outside at that level!

I doubt that there's a need to be very scientific about the actual minimum level - they take 5 pints so I'd guess you'll want to be topping up at or before it's a pint down. Oil sitting in the tank when you're running is doing nothing active other than cooling off before the next pass through!

 

|looks like it'll be about half way down. It's a Tiger 90, I know, but they're fundamentally the same.



Or a third of the way down, perhaps?



@darkman will know!

 

Middle and middle just like the red n white one above is about correct, all of my bikes are a little different just as they were from new