I typically will idle my motorcycle's engine for about 10 minutes before changing my motor oil, to warm up the oil, so it flows out better. I never really questioned it.
But my bike's been in storage for longer than usual, and the battery's in repair mode for a day or so -- and I can't run the engine right now. I'm wondering whether it might be just as efficient (or even better) to drain the old oil it while it has gravitated down into the pan from all this time in storage.
Would I manage to get more of the dirty oil out if I let the engine run before, or if I drained it directly out of storage?
In case it matters: The motorcycle is a Kawasaki KLR 650 2008. It's a single piston engine, and the same oil circulates in the motor and the clutch (wet clutch). The first engine-start of the season will typically take some good amount of crank and choke to run.