Hi
I bought both inlet rubbers some years back, not sure how many 3/4?
I got them from Fowlers Motorcycles in Bristol UK
Fowlers operate an international mail order service on line.
WWW.fowlers.co.ukI have bought some petrol tank tap rubber parts last month from
them which has cured a fuel supply problem. But more parts are becoming unavailable from Yamaha as time passes.
Keith