Hey, I have a 5eb 99' r6 and was rebuilding the carbs. All the o-rings inside were petrified like all the other rubber on the bike, but after I took them off, I realised the o-rings that came in the carb rebuild kit are way too fat of an OD. I bought a box of Harbor Freight metric o-rings, but they are all still too fat. I don't know how to get o rings that will fit seems like its a 6mm id and a 1.5mm od according to a previous thread (for part 42)