I have a 1982 Honda CB750F Super Sport, the carbs on it are good but my throttle arm/spring is completely shot (rust has eaten it apart) they’re not frozen or anything the bike will run but like i said, throttle arm on them is done for, so now i have to buy a full carburetor set (4) unless there’s a way to replace that part??? Doubt it though, any tips on if i can replace it or doni need to buy a whole set of carbs.?