The problem I have previously encountered in painting over chrome is obtaining a decent key for the paint. By it's nature, chrome offers a hard surface finish - though clearly not a rust free one - but after 70 years I can forgive that. It is not simply a case of scuffing it with wire wool or a ...

The problem I have previously encountered in painting over chrome is obtaining a decent key for the paint. By it's nature, chrome offers a hard surface finish - though clearly not a rust free one - but after 70 years I can forgive that. It is not simply a case of scuffing it with wire wool or a ...

will_curry wrote: Wed Dec 10, 2025 3:55 pm I s the corrosion deep enough to have compromised the rim?

An inflated tyre puts quite a significant load on the rim without
the wheel even turning.

No - surface only.

The corrosion is much more than a couple of wee spots. It is quite severe on the rear rim - strangely perhaps only on the flat areas mentioned. I have previously prepared the area well, but the subsequent topcoat - and I have tried several - is a very poor match to the rest of the chrome. I believe ...

I should have mentioned the chrome paint was rubbish not only from a colour match perspective, but also from an adhesion one. I think if I painted the whole it would not be a good result - being a chrome plated substrate and even if it were keyed somewhat.

Yes stainless rims/powder coat would be ...

Folks

I have chrome rims fitted front and rear. The central convex section and the side of the rims are fine, but the flattish bits each side of the central section - around 15mm or so - are badly pitted. The chrome has come away and the metal underneath has corroded to a dark rust colour. I am in ...

and both have m/c engine at the rear, car steering/suspension, car-like controls etc. These similarities are not particularly common surely?

Roger - Indeed. I was thinking of updating the concept! A low cost Grinnall Scorpion with enhanced weather protection perhaps

That looks fantastic. I have often thought there is a market for a such a machine, perhaps shortening and streamlining the front and improving the weather protection and seat a little. Perfect for the urban commute.....

If you just want to get it to start - and this just for the carb.

Clean everything thoroughly - especially float bowl, float needle seat, wee holes in the carb body for pilot, needle jet, needle etc etc.
Check float level, and that the float floats and the valve cuts fuel off.
Check all jets ...