Little rubber O

[Racingrobby]

Can someone tell me the size of the  small O rubber ring that is in with air valve is I lose one now I was cleaning the carbs. And another quick one I know then your take out the air screw there is a realy small rubber O ring that is the size of them and there is a flat metal O ring in there I only got one out . I had a buddy who cleaned them for me but Im not sure if he pull them all in? I can't see ? Any ideas ? And the same buddy said he cleaned them really good ( that's why I'm cleaning them now 2 weeks later) lol broke the in side screw hole in the bowl the one the acc. Pump is on . Like he screwed it on to hard ? And didn't tell me till I went to clean them and I seen gum like hard crap ( jb welded ) he tried to fix it .   Long story does anyone have a acc. pump bowl ? I could get ??   Thanks for all the help sorry for asking all the questions it's my first bike and I didn't have anyone to ask . Only the ( buddy) who messed it up  lol lol