SOHC.co.uk Forums > CB350/400
Exhaust preservation
350Simon:
I've got a cb350f fitted with a brand new 4 into 4 exhaust system. It's a David Silver aftermarket system.
Are these as prone to rust as the originals? I'd like to preserve it if possible as I have the sales invoice and I'd rather not have to replace it any time soon!
Someone I work with suggested removing the system, filling the pipes with gear oil, draining and then running the bike until the smoke disappears. Apparently it varnishes the inside of the pipes and helps to preserve them?
Has anyone done this and does it work or is it an old wives tale?
Cheers
Simon
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Nurse Julie:
Yes, you can rince it out with any oil and it will have a slight beneficial effect. No idea if the 350F aftermarket 4 into 4's are any good but unless you're riding it every day doing 12,000 miles a year, I wouldn't worry about it to much. The worse thing you can do is keep starting the bike up, creating condensation and then not running the bike for long enough to dry the condensation out. That's the main killer for the exhausts.
350Simon:
--- Quote from: Nurse Julie on July 06, 2022, 02:44:22 PM ---Yes, you can rince it out with any oil and it will have a slight beneficial effect. No idea if the 350F aftermarket 4 into 4's are any good but unless you're riding it every day doing 12,000 miles a year, I wouldn't worry about it to much. The worse thing you can do is keep starting the bike up, creating condensation and then not running the bike for long enough to dry the condensation out. That's the main killer for the exhausts.
--- End quote ---
Fab thank you
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Oddjob:
I'm fairly sure Trigger mentioned filling them with Diesel as a good solution. Saying that the cost of Diesel these days it might be cheaper buying a new set ;D ;D
350Simon:
--- Quote from: Oddjob on July 06, 2022, 03:59:27 PM ---I'm fairly sure Trigger mentioned filling them with Diesel as a good solution. Saying that the cost of Diesel these days it might be cheaper buying a new set ;D ;D
--- End quote ---
Haha indeed it might! Cheers
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