I'm very likely the only one who will care about this. But this info wasn't anywhere that I could find on the internet, so I figured I'd leave it here in case some random person is searching for it someday. Or, more likely, I need to find it later because I lost the bolt again.
I have a 90's Yamaha 9.9 outboard. Specifically, the f9.9mshq. For some reason, the stainless mounting bolt/washer (part # 97080-06020-00 + 92990-06600-00) for the fuel pipe join (6G1-24304-10-00), AKA the fitting the fuel hose attaches to, screws in from externally under the motor. Gravity and vibration being what they are, losing one in the lake is easy enough to do. Because I had no idea if there was anything special about the bolt/washer, I ended up buying the "official" Yamaha parts. It wasn't expensive, $7 inc tax at my local dealer. But guess what? It's not special in any way and the same thing is $1 at the hardware store. So if you don't feel like paying for the official one, find yourself a stainless m6x20 bolt and m6 washer.
This is the fuel hose fitting:
(Yes ,yes, I know. the washer is a little bigger and the hex head isn't rounded the same. But it works fine.)
I have a 90's Yamaha 9.9 outboard. Specifically, the f9.9mshq. For some reason, the stainless mounting bolt/washer (part # 97080-06020-00 + 92990-06600-00) for the fuel pipe join (6G1-24304-10-00), AKA the fitting the fuel hose attaches to, screws in from externally under the motor. Gravity and vibration being what they are, losing one in the lake is easy enough to do. Because I had no idea if there was anything special about the bolt/washer, I ended up buying the "official" Yamaha parts. It wasn't expensive, $7 inc tax at my local dealer. But guess what? It's not special in any way and the same thing is $1 at the hardware store. So if you don't feel like paying for the official one, find yourself a stainless m6x20 bolt and m6 washer.
This is the fuel hose fitting:
(Yes ,yes, I know. the washer is a little bigger and the hex head isn't rounded the same. But it works fine.)