SOHC.co.uk Forums > CB350/400

Cb400 Four silencer advice

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paul G:
Joe,

      Mine definitely sounds different to the standard one (louder pop) difficult to describe it really.
It has also created a small flat spot around 3k.
Can't elaborate any further due to the bike being stored since Aug last year.
The silencer was purchased just before that if it helps I will find the receipt from silvers.

Regards,

AshimotoK0:
Has anyone got a scrap rotted out silencer for us to disect to see what the internals are like. I don't mind doing tests as I have all the gear to do back pressure & flow testing as we make air motors where I work part-time and we have loads of test facilities. We also have sound measuring gear. I have a NOS standard Sankei silencer to compare with the Brituro one.

Must say that Joe has gone beyond what most other manufacturers would do to assist me with my CB250 twins, so a massive thank you from me Joe.

Laverda Dave:
I have a rotted out silencer Ash. It has a hole at the end next to the weld where the shallow reverse cone is fitted.

ColCB400 4:
@Brituro, The exhaust is fine, no jetting problems, power issues and looks the part but dosnt have that slightly deeper sound I got from my old Honda silencer.

I have been out on the road today, with my open helmet on (I get to hear better) and it wasn't sounding that bad to be honest but I just recall a deeper note.

Wish I didn't get rid of my old one to the scrap bloke :(

AshimotoK0:

--- Quote from: ColCB400 4 on March 13, 2016, 08:30:14 PM ---@Brituro, The exhaust is fine, no jetting problems, power issues and looks the part but dosnt have that slightly deeper sound I got from my old Honda silencer.

I have been out on the road today, with my open helmet on (I get to hear better) and it wasn't sounding that bad to be honest but I just recall a deeper note.

Wish I didn't get rid of my old one to the scrap bloke :(

--- End quote ---

I will PM joe at Brituro and see what he wants to do. May be the baffling slightly different.

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