I've heard of these replacement diaphragm kits before and they seem like a good idea to me.. The hard part is removing and replacing the carbs so you might as well do the job properly..How does $19.50 per diaphragm sound to you? Check out this link: Keihin 72mm diameter diaphragm Honda VT CBR Hurricane Installation. Please note that I don't have any financial interest in this product or the web site. Simply doing some research to help you out. As always and above all...ride safe.