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'64 Dream 305 CA77 carburetor covers

HondaDreamer

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Jul 25, 2021
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Location
Providence, RI, US
Hi all,

I've gotten my hands on a pair of carbueartor covers for my 1964 Honda Dream 305 CA77.
Being new to motorcycle restoration, I had a couple questions.

A. Would cleaning these with WD40 and a brush be enough to get the grime off? Is there anything extra I could to do to really make 'em shine?

B. These is a small crack, but I'm wondering if it's a big deal or not. Should I be concerned?
 

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No worries, it's why we're here, keeping order because we're ADHD about it. :)

You can't hurt them with any cleaning solvent that won't hurt your hands, but I doubt WD40 would be strong enough to loosen old grime that's been on there and exposed to engine temperatures for years if not decades. If you really want them shiny then go through the process of sanding the outsides of them with fine sandpaper, 220 and up to 400 or even 800, then use a polishing (rag) wheel and some polishing compound sticks to make them like a mirror. As for that crack, it looks like someone previously overtightened the screw or bolt that goes in that hole. I'd get it clean and oil free, sand it to rough up the surface and reinforce it with some JB Weld.

This thread might be of some help.

https://www.vintagehondatwins.com/forums/showthread.php?3293-Sanding-Polishing-Aluminum-covers
 
ancientdad said:
No worries, it's why we're here, keeping order because we're ADHD about it. :)

You can't hurt them with any cleaning solvent that won't hurt your hands, but I doubt WD40 would be strong enough to loosen old grime that's been on there and exposed to engine temperatures for years if not decades. If you really want them shiny then go through the process of sanding the outsides of them with fine sandpaper, 220 and up to 400 or even 800, then use a polishing (rag) wheel and some polishing compound sticks to make them like a mirror. As for that crack, it looks like someone previously overtightened the screw or bolt that goes in that hole. I'd get it clean and oil free, sand it to rough up the surface and reinforce it with some JB Weld.

This thread might be of some help.

https://www.vintagehondatwins.com/forums/showthread.php?3293-Sanding-Polishing-Aluminum-covers
Click to expand...

This is super helpful. I'm going to go this route. Good CSI work with the screw, that must have been it.
Just went through that thread, I'd love if my back braking plates looked as good as yours.
 
HondaDreamer said:
This is super helpful. I'm going to go this route. Good CSI work with the screw, that must have been it.
Just went through that thread, I'd love if my back braking plates looked as good as yours.
Click to expand...

Just takes time and patience, and maybe a new rag wheel too if you do all the parts I did (all 4 cam bearings, front valve cover points and alternator covers, oil filter cover and both backing plates). And the shinier you want it, the more heat developed during the polishing process so wear a good glove on the hand that holds the part to be polished... and hold it tightly or it will go flying.
 
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