1980 muffler surface with black spots
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1980 muffler surface with black spots
I need help. I have black spots on my mufflers, both left and right. It was clear nice chrome when I got the bike a year ago, but now, it has this black marks. Can anyone tell me why this is happening and how I can fix it? I think there might be a leak where exhaust leaks out and hit the surface of the muffler where it burns the surface. But what do I know. Please help me solve this puzzle. Thank you in advance for all suggestions.
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Re: 1980 muffler surface with black spots
Looks to me like you're melting your boot/shoes on the muffler.
Autosol and some muscle should remove it. I wouldn't use an abrasive cloth of any sort.
You MIGHT have to use something like GooGone on the black first before the chrome polish.
Autosol and some muscle should remove it. I wouldn't use an abrasive cloth of any sort.
You MIGHT have to use something like GooGone on the black first before the chrome polish.
- NobleHops
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Re: 1980 muffler surface with black spots
I’d try an acid clean, with a dilute solution of Ospho or similar phosphoric acid product. Wet a paper towel with it, drape it on the spot, and after 15 min, see if it is dislodged. Or acetone.
Nils Menten
Tucson, Arizona, USA '80 CBX, sort-of restored :-)
Tucson, Arizona, USA '80 CBX, sort-of restored :-)
- Jeff Bennetts
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Re: 1980 muffler surface with black spots
That bike is ruined, better sell it before it gets worse.
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Re: 1980 muffler surface with black spots
Boot rubber -- use acetone and non-scratch pads.
Larry Zimmer
cbxlarry@sbcglobal.net
cbxlarry@sbcglobal.net
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Re: 1980 muffler surface with black spots
I thought so too but I cannot find any issue on my boots.
- NobleHops
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Re: 1980 muffler surface with black spots
Do you store the bike on the sidestand? Maybe it’s potting goo from the ignitors.
Nils Menten
Tucson, Arizona, USA '80 CBX, sort-of restored :-)
Tucson, Arizona, USA '80 CBX, sort-of restored :-)
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Re: 1980 muffler surface with black spots
Oven cleaner and 0000 steel wool, if more mild efforts fail.
Dave
Dave