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Are there any issues painting carbs?

I'm working on a frame off resto. I'm blacking out the whole bike except for the tins in a single stage, epoxy, high temp satin black. So heat is not an issue and no need to prime (though I am on the frame and small parts) and won't be clearing. I've never seen carbs painted, and I would assume heat retention isn't an issue if its engine paint that causes no problems w the engine. But its the never seeing it done part that has me asking before I maybe ruin an expensive rack of inline 4 carbs

Also it would be great if I could find black pod filters. I don't want style to detract from function, but it would look good.

Update:

I've gone over the powder coating pros and cons...I work at a vehicle mfger that paints and powder coats so I've got some good guys to have the debate with. I chose paint because both will chip on a daily driver within a couple years, and I can touch up paint without redoing everything I'm using PJ1, which is higher end stuff not Rustoleum or DupliColor. I tied a test piece to my truck grill back in March, and with driving 60-100 miles a day at interstate speeds its held up.

Update 2:

@George yeah that's my thought too..I have never seen it done ever, so there must be a reason other than no one has done it. I'm not special, I sure I didn't just think up some new thing after 100 years of motorcycle building. I thought about checking out classic car resto-mod communities, but a big honking single barrel is a little different.

Update 3:

@Tim D for best results high temp paint should be cured with heat but a heat gun is sufficient, no rubbers or gaskets in there of course. I can see gas being a problem, but more of a cosmetic have to touch it up every year problem. I'm more worried about mechanical issues.

5 Answers

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  • ?
    Lv 5
    9 years ago
    Favorite Answer

    I've never ever seen carburetors painted so there must be a good reason for it even if i don't know that reason. If the carburetors are aluminum you could anodize them black though as anodizing only changes the color and doesn't add any material to the surface.

  • 9 years ago

    Some bikes and personal water craft (jet skis) came stock with black carburetors.

    Yes, the paint eventually chips off. As does any powder coated part.

    Painting carburetors - spilled gasoline (from pulling off the main fuel line)

    dissolves the paint and they look like some idiot painted them LOL

    Gas fumes from the carb vents and gas spitting back through the pods

    will dissolve the paint.

    You can't re-paint the carbs while they are on the bike and they will have to be

    dis-assembled for a professional look.

    Any chips of powder coat can be touched up with an artist paint brush.

    A little dab here and a little dab there.

    When normal paint gets dissolved, touch up looks like crap.

    I don't foresee any mechanical problems from painting the carbs.

  • ?
    Lv 7
    9 years ago

    Instead of paint, you might want to think about powder coating some of the parts. It's a much tougher finish, and won't chip or flake off as easilly as paint. No matter which way you go, make sure you don't gum up the works by getting paint on the moving parts of your throttle linkage, etc.

  • Anonymous
    9 years ago

    Why?

    Just have them chromed.

    EDIT: Most bike carbs are pot metal, a zinc alloy. A very few were aluminum, some cages had cast iron throttle bodies. Still, almost any metal can be anodized: http://www-glmfinc-com.netsolads.com/?MSADID=95340...

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  • Tim D
    Lv 7
    9 years ago

    Don’t most high temperature paints need a high temperature to go off properly? I would have thought that lack of temperature combined with inevitable seepage would discolour and strip paint in short order.

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