hi
I've been riding this new to me bike (about 90,000km) a few months now with not losing or using any oil.
It was unused for a few years until i got it. After servicing, to test if the fan worked i let it idle about 20 minutes and wasn't getting hot enough for fan to work so revved it to 2000 for about 5 minutes, the fan then turned on, then off, as expected.
The next day there was about one or two tablespoons of oil drained from the oil pump drain hole.
I did this test a second time with the same result. apart from this it has not leaked one drop of oil.If i leave it to idle after a ride until the fan comes on, it doesn't leak.From this forum im thinking the pump has a drain gallery back to the sump.
Have i understood that right, could that be blocked and causing the problem?