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Yankee Doodle not so dandy CB400 rebuild
K2-K6:
What an improvement, must be pleased you've got that sorted.
For anyone welding with arc and stick kit, if you keep the rods in a warm dry place (airing cupboard) they will weld much better. The external flux is hygroscopic (absorbs water) and doesn't work well at all with it damp. Usually it spatters all over the place and gives those blobs seen in the first photos.
If the flux doesn't flow properly over the hot weld it will oxidise during the weld phase and not give the integrity needed either.
Skunky:
--- Quote from: K2-K6 on April 06, 2019, 12:46:48 PM ---What an improvement, must be pleased you've got that sorted.
For anyone welding with arc and stick kit, if you keep the rods in a warm dry place (airing cupboard) they will weld much better. The external flux is hygroscopic (absorbs water) and doesn't work well at all with it damp. Usually it spatters all over the place and gives those blobs seen in the first photos.
If the flux doesn't flow properly over the hot weld it will oxidise during the weld phase and not give the integrity needed either.
--- End quote ---
To be honest I think the poor welding was done with the engine in the frame by a complete idiot. He just wanted it back on.
It is apparent that when the bike broke down he just left it standing. Its got no miles on it and the original tyres although I think it's short life was a hard one.
I'm over the moon. I thought I might have to scrap it but now I can start the restoration. I intend to leave the bike standard and clean up as much as possible without removing the patina of age.
Skunky:
Frame cleaned back to metal and painted [ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ]
Laverda Dave:
That's a very smooth finish, hand painted?
Woodside:
And what paint did you use?
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