Originally Posted by creeper
Additional information as of 05-07-06
After discussing the options, it's possible that the best way to burp the frame on an '02 and earlier 640 would be to install the filler bolt loosely in the frame, in other words, threaded in, but not quite all the way, then start the bike and wait for the oil to flow out past the threads. As soon as you see the oil, tighten the bolt... then shut off the engine.
Have a rag or two handy to soak up the oil that slides past... but if your quick about it, there should be a minimum of mess.
Why is this not a good idea on the 03 and later bikes? I see they have a different sized bolt/hole but for the life of me can't understand why that would matter.
Also, is it critical to tighten the bolt and then shut off the engine (in that order)?
(now back to the Cup...)