Hi Folks, I need to check the stick coils on my 2008 R1200GS with 85,XXX miles this weekend and I am looking for some clarification to the procedure. I have searched many threads and there are some conflicting ideas on how to do it. My understanding is that the bike will run on one set of coils and to test the coil, you unplug the opposite coil and see if it still runs. For example to test the primary coil, you would unplug the secondary coil and if it runs poorly the primary is bad. If you unplugged the primary coil and it ran poorly the secondary plug was bad. Is this correct? I saw a couple of other posts that said if you unplug a coil and it still runs then THAT SAME coil is bad, which makes no sense to me at all. I am also under the impression that you should only unplug the coil at the connector wiring plug and never remove the tip from the spark plug when doing this test.....is this also correct? Thanks in advance for any tips on this, I know there has been previous discussion on this topic, but these coils are expensive if something goes wrong so I want to do this the right way.