Topic: CB400f exhaust gaskets

[kfleschner]

I'm replacing the old 30+yr exhaust gaskets on my 75 CB400f with ones I picked up from 4into1 (so I'm assuming that if they say it fits the 400f, it'll fit the 400f). The old ones were a paper with wire wrapping. The new ones look like metal over a paper core, and seem like they're just a touch too big to fit into the engine. Am I just supposed to jam them in there and hope they seat well when the exhaust goes on? Anything else I should take care of while I'm down there?

Thanks!

[MoMo]

Maybe scrape some of the excess carbon away and then install the new gaskets, a bit of gentle tapping helps to get them flush.

[skidooextreme]

same issue with the 350f gasket kit.  I actually used my bench grinder wheel to trim them up, didnt take long.  They will squish out if you take to much

[kfleschner]

The gaskets have a concave and convex side. So does the higher, inner edge of hole point towards the pipes or away? Does it matter if they all get squished against the engine?

[bjbuchanan]

Just squish it. I would say concave out but I bet it wouldn't matter in the end, they deform well enough to seat nicely