1999 WR400F I bought the bike used and was not told anything about the carb being changed out, but from what I've seen it doesn't appear to be stock (no linkage cover?). I need to know if it is stock or something like a FCR41 so I can order a few parts for it. Need float bowl o-ring gasket, intake bell o-ring gasket, accel pump diaphragm and o-rings (may be a good time to go to a larger AP?). Anything else I should consider replacing? The wheels on the arm that pulls up the slide looked a bit worn, but nothing else looked bad. I also wrote down all the jet sizes and needle type for looking at after I figure out which model of carb it is. Pictures: Does that hole need to be plugged or anything? Thanks.