SOHC.co.uk Forums > CB500/550

More progress

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Laverdaroo:
You wait….!


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Johnny4428:
Ian! Just the thing for your local authority bike! 🤣🤣

Johnny4428:
Seriously, nice bit of tidying up going on there Ian, going to be another nice classic for the summer.

Seabeowner:

--- Quote from: Orcade-Ian on February 11, 2023, 06:24:29 PM ---The original tank (still on in those pics) has a couple of pin-holes on the left side - possibly from ethanol over the years and there was quite an amount of rusty water under the fuel.
Ian

--- End quote ---
Yes the US has a long history on and off of ethanol in fuel. I wonder if that's why so many US bikes have crumbing carbs. How are yours?
Phil

Orcade-Ian:
Hi Phil,
Can't be certain about the carbs as the ones with the bike are 627s (500/4) but jetted correctly and they did have a small amount of corrosion on the usual main jet tube.  The 069s I got from a chap in Netherlands are absolutely fantastic and they are almost ready. I had the flexy camera in the original tank and it's just a strip of  terminal rust along the left hand inner face, a couple of inches up from the base, where it's been sitting on its side stand presumably.  As I say, a piece could easily be let in and brazed in place to make a good tank for someone but I was very lucky to get a really good one, so couldn't be arsed doing the original.  Now it runs well on all 4, I pulled the cam cover and breather chamber today to re-finish those and the cam, cam cover journals and rocker arms are still like new.

Ian

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