I have a 99 gsx limited, just replaced grey fuel lines and ordered 2 mikuni bn46i carb rebuild kits, however these kits didn't come with a new accelerator pump diaphragm or check valve for it. can't find anyone who sells that, even dealer says i have to get a whole new accl pump for over $200. thats crazy because all i need is the little orange umbrella looking check valve, pump squirts fine just not out the squirters. mine is sheared off at the stem. can anyone tell me where i can find that part. looks alot like the one on a holley carb just a lot smaller. thanks for any help