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CB350 1971 Restoration Project

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AshimotoK0:

--- Quote from: Menno on June 11, 2021, 09:32:22 PM ---If you would paint a candy red over white you would have to add so many layers to cover the white that the colour would become very dark.
But even still.... it is called light ruby red. Not light candy ruby red.

--- End quote ---

Last week we stripped a nasty rust patch off Ben's tank. Definitely original paint  but multi layers from the factory just like  AndrewS's 750K1 tank. If it was a solid colour why wold Honda bother doing that? As per the Honda Bulletin, I am sill convinced it's Candy coat over white base coat. We are going to try a patch, as I have some Candy Ruby Red paint left over.


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AshimotoK0:

--- Quote from: BenPowell on June 30, 2021, 08:36:27 PM ---Yeah there’s no life left in that bore anyway.

I think by looking at it I would probably get away with 0.50, I might keep going with the cleaning up and measure it once the pitting is out to see what the size is, suppose that’ll tell me what piston size I will have to go with then, or could go with 0.75 to be sure.

--- End quote ---

Don't do that Ben ... let Trigger look at it and assess it as it is.

Bryanj:
Other thing is if you keep going and oval it its a swine to centraise on the boring bar

florence:
I would agree with that, take it to someone who knows what they are doing.  I was told by Steve at Piston Broke in Bristol that Honda tolerences were really tight and he correctly rebored my 500/4, very close indeed.  He warned me I would have to run in very carefully but that there is no point in taking out more metal than is needed and that it would last longer as a result.  I followed his instructions and 26 years later it is still going strong.

If the pitting is really deep there are other pistons that fit CB350k such as Kawasaki GPZ750 (66mm).  Same crown and gudgeon pin size and valve cutaways fit perfectly.

McCabe-Thiele (Ted):
You would be surprised at how much metal you can remove with a stone I overdid it once on an A series engine.

Let someone familiar with the genre look at it - you can get your block courrier collected  & returned by Trigger they do an excellent service.

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