The mixture screw on my 2005 XR650L vibrated out while on a ride. I ordered the Moose Carb Rebuild kit and it came with all of the parts I need to replace it. My question, could the original O-ring and washer still be seated up in the carb? I'd prefer to re install the mixture screw without taking apart my whole carb to check. So basically, if the mixture screw backed out like it did, would the spring washer and oring have falled out as well, or could it still be up there. Any clever ideas how to check, other than just running a tiny hook up there to try and pull out an oring that could be stuck up there. Thanks guys!