Obsolete inlet rubbers

[Zxrjack]

Hi all,

I've very nearly finished my rebuild but im stuck on the final hurdle.

I have a set of 30mm carbs but cant find any 30mm rubbers to match.

I've tried various sealants on the 32mm rubbers but nothing lasts.

Kawasaki dont have any and cant offer a solution.

Help me zxrworld, you're my only hope.

[abduragmaan]

Fuel injection