[alanmcorcoran]

Not sure if this is going to be any help to you at all, but i am pretty sure i overfilled my oil (all by myself!) and, although the bike continued to run, and I can't be 100% sure of cause and effect, I strongly believe this contributed to an eventual hosing of the carburetion system leading to rough idling, stalling and a significant drop in gas mileage. I am not a mechanic though and the two events could be unrelated. Ultimately, after three trips to the Suzuki dealer, they were able to clean up the problems and got everything back to normal.

I don't think it's that big a deal to just drain the oil and redo it. Except for maybe, the "no over filling" it part. I don't remember what the size was on the drain plug but I believe it was metric and I had a wrench that was an exact fit. There were some obstructions under there (maybe the frame?) and I think I ended up using a short socket or perhaps a crescent. There are two "heads" under there that are close together and the same size - make sure you go after the one that is the oil drain.