Carburetor Adjustment

[FMS88]

Ooh, that may be relevant to my interests -- anyone know where to obtain a new bowl vent diaphragm these days?

For an '87 engine with a Mikuni carb that has an electric choke, you want the bowl vent valve for sale in these listings:

https://www.ebay.com/itm/TOMCO-7404-...Bsg:rk:52:pf:0

https://www.ebay.com/itm/NOS-Tomco-7...O52g:rk:2:pf:0

The listings and the manufacturer describe it as a choke pull-off valve, but that's incorrect. In both listings the pictured item is the bowl vent valve you need for that year and carb.