size bolt

[Oss]

for that reservoir cover on the right side under the seat?

It is missing   danged if I know where it went to

[sandy]

Evan; let me go through my extensive collection. If I can find it, it's yours.

[-mike-]

Greetings from the land of plenty.....

https://www.valkyrieparts.de/epages/63631381.mobile/en_GB/?ViewObjectPath=%2FShops%2F63631381%2FProducts%2F%2220.244%20KM1%22

Shipping makes it cost prohibitive, though.

Then Amazon showing in stock, too:
https://www.amazon.com/Honda-90113-KZ3-000-Bolt-Flange-6Mm/dp/B00AJV8354

Or just search 90113-KZ3-000 in Google and you'll come up with some choices. Even titanium aftermarket, as this special flange bolt is used at some other Honda's too.

[Oss]

i think it is  28 in the pic  thanks

Sandy if you have one thanks

I will PM my address if you find one and send $

[Oss]

turns out it was the 8x12 bolt that holds the plastic reservoir cover
put a lock washer behind it

all good now