Anyone have experience with the oil filler caps offered by Motocircle on eBay? I recently got one for my 2003 F4 and it doesn't quite seem to fit. I can thread it on but can't get more than 1.5 turns before it seems to jam up. :wtf: The OEM cap snugs down at over three turns. I have a feeling the threads are not correct on this piece. It's a nice looking piece, but not if it can only sit on my desk..... Anyone else?