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CB77 Exhaust Copper Crush Gaskets

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dragonfly888
honda305.com Member
Posts: 48
Joined: Fri Jul 16, 2010 8:35 am
Location: Burlington, Ontario, Canada

CB77 Exhaust Copper Crush Gaskets

Post by dragonfly888 » Thu Mar 18, 2021 7:17 pm

Wondering if anyone knows the size of these gaskets?
And where to get them?
I have tried a search here, but received errors.
Thanks very much!
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1966 CP77 305 Super Hawk
Burlington, Ontario Canada
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Tim Allman
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Posts: 498
Joined: Tue Dec 02, 2014 9:25 am
Location: Guelph, Ontario, Canada

Re: CB77 Exhaust Copper Crush Gaskets

Post by Tim Allman » Sun Mar 21, 2021 1:19 pm

I just measured the outside diameter of a pipe with its collars. It is 45 mm. Inside diameter is about 32 mm. Hope this helps.
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brewsky
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Joined: Wed Jul 23, 2008 5:21 am
Location: Princeton, WV

Re: CB77 Exhaust Copper Crush Gaskets

Post by brewsky » Mon Mar 22, 2021 4:13 am

Part # 18291-254-000

They fit many different models, should be able to get them at any honda dealer or parts outfit.
66 dream, 78 cb750k, 02fz1, 09 wing
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Seadog
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Joined: Thu Dec 25, 2014 9:54 am
Location: Cape Cod, MA

Re: CB77 Exhaust Copper Crush Gaskets

Post by Seadog » Wed Mar 31, 2021 11:42 am

Classic Honda Restoration has them. See https://classichondarestoration.com/exhaust-gasket.html
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