Wow, if I search for "Honda C90" then a bunch of links are found.

Honda C90 UK

Ah, ha, Wikipedia C90 mentions it started in 1967 up to the early 1980's.

And, Bikepics.com for Honda C90 shows them up to 2010.

And the official Honda web site for Cub Series. Have some fun with this link.

So, even though I can't seem to compare part numbers for compatability (maybe you can check some of the other online Honda parts sources), I guess you could see what gaskets out of the set matches what you need, as you do a rebuild. Maybe a lot, maybe only a few.

Unless we're talking about the Benly C90 which is a 250cc Isle of Man TT racer (smallest paragraph on the page, about half way down). "Shinmura was later to design engines for such machines as the Benly C90, the 250 cc Isle of Man TT racer, and the N360". Nah, can't be that.


Paved roads, just more needless government spending...

I pick up my mail in Santa Barbara, California, USA.