1990 cbr1000 carburetor diaphram
 

I have to replace a diaphram on one of my carbs and the part number is 16111-mm5-692 and the only ones I'm finding are for a 87 to 88 model and the part number is 16111-mm5-601 and was wondering if it is compatible if not what can I do

According to Fowlers Parts this part is used on 88-92.
https://us.fowlersparts.co.uk/parts/view/16111MM5692

I get a lot of parts from Netherlands on this website.
https://www.motorcyclespareparts.eu/en/honda-parts/1988-cbr1000f-motorcycles/e-17-1-caburetor-component-parts

You can find the new part (expensive) on ebay of italy and germany.
https://www.ebay.it/itm/Gasschieber-...wG5:rk:18:pf:0

OR go to motorcycle salvage yards