brettp the air box where the filter slides in has a rectangular cover fastened with two screws that fit into brass inserts those
shown in the picture i have no idea but they are threaded, cheers. now then i have just thought there is a performance bike sticker on the outside so i bet you are right and the sticker covers where the original part should be, thanks, i will have a feel on the sticker for the holes.
oh dear silly me , because i had too big main jets i took the rectangular cover off that sits inside this cover to get more air into the engine, today while taking the carbs off i realised what they are for
mr two wheel yes i had to take it off because the main jets were too big, it's a jdm 750fz and the only books i have on it are clymer and haynes which said 102 mains, so i fitted them and it bogged out at 5000rpm so i'm putting the 75's back in.