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CB400F - My first bike

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JParty:
Update from the weekend!

I made my DIY soda blaster and it works a treat (although it's a bit slow waiting for the compressor to fill up between blasts). Started on the cylinder fins and it took it back to the aluminium well. The top cover, partially chromed bits and sump it couldn't penetrate however. Any advice on what paint stripper will work well and not damage the aluminium surface?

I probably have another weekend of blasting before all the old paint is off. It's a bit of a shame because whoever prepared the paint before me used a pretty aggressive wire brush so it's gouged the aluminium casings. I tried a fine steel wool with autosol on a sample spot on the crank case and that worked well but is a lot of elbow grease.

Nurse Julie:
You are making good progress there. I like to be proved wrong but I was always under the impression that the only way to remove chrome that is still stuck in place is by reverse chroming. Does anyone know any different 🤔

JParty:

--- Quote from: Nurse Julie on December 21, 2020, 03:56:10 PM ---You are making good progress there. I like to be proved wrong but I was always under the impression that the only way to remove chrome that is still stuck in place is by reverse chroming. Does anyone know any different 🤔

--- End quote ---

You are right Julie. The blasting doesn't get it off. An ice scrapper does get the loose bits but won't be possible everywhere. I looked into getting it de chromed but its pricey. I have left it to think about for now.

kevski:

--- Quote from: Nurse Julie on December 21, 2020, 03:56:10 PM ---You are making good progress there. I like to be proved wrong but I was always under the impression that the only way to remove chrome that is still stuck in place is by reverse chroming. Does anyone know any different 🤔

--- End quote ---

Nitric acid 69% in an electroplating bath, licensed users only, it's what i used to do for a living, aside from that elbow grease and wet and dry paper for the parts that have not already peeled.

JParty:
Update - got carried away in lockdown. Now time to find a blaster and painter near Milton Keynes!

Separately - starter motor question:
I noticed when the bike was assembled, sometimes when I kicked it with the kick starter I noticed on some kicks it felt like the starter was engaged (adds quite a lot of resistance). In another instance, I had one case where when the battery was connected and the starter engaged and started turning straight away (no key in and ignition off). Sprayed some contact cleaner near the switches and left it to rest. Connected battery again and didn't cause issue but it doesn't make sense to me.

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