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12th Jul 2019, 07:28 AM #1New Member
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Damaged chrome plating and bare metal spot motorcycle exhaust
Hello all,
I have a question how i might be able to fix a bare scraped motorcycle exhaust end. The spot has scraped against the pavement and is about 2 cm by 7 cm big. The chrome is gone and the bare metal can be seen as it rusted a little bit.
My question is: how might I fix this as cheap and good as possible by myself (hopefully without special equipment)?
Don't want to spend a lot of money on a new exhaust for my Honda CB750. It was a damaged bike and was able to buy it for a good prize. A new exhaust is in comparison quiet expensive... anyone an idea?
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12th Jul 2019, 09:06 AM #2Mechanical Butcher
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I don't think there is a good cheap fix. Try paint.
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12th Jul 2019, 10:04 AM #3Most Valued Member
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You can buy a chrome plating kit from Caswells but I think they are expensive. I think that chrome paint is also very expensive. I don’t know how heat resistant it is either.
I would take it to a chrome plating shop and get a quote.Chris
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12th Jul 2019, 10:09 AM #4Most Valued Member
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A chrome plater might have a go at it if it can be sealed properly, they dont like soot and carbon in their witches brew
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12th Jul 2019, 10:55 AM #5Mechanical Butcher
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I wish chrome plating was still affordable.
It's hard to find anyone who wants to do job lots any more anyway.
Please show me I'm wrong!
I'm starting to think it might be worth sending stuff overseas to get chromed, but that's likely a risky proposition.
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12th Jul 2019, 10:58 AM #6Mechanical Butcher
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12th Jul 2019, 11:18 AM #7Most Valued Member
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I just checked the price of chrome plating kits. I reckon a new exhaust would be cheaper.
Sent from my iPad using TapatalkChris
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12th Jul 2019, 04:48 PM #8Gear expert in training
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I remember DIY chrome plating came up a little while ago; aside from being expensive, it's an extremely toxic process https://en.wikipedia.org/wiki/Hexava...omium#Toxicity
Either replace the part or get it done professionally, it's not worth the risk of doing yourself some serious harm.
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12th Jul 2019, 05:38 PM #9
Hi and welcome to our forum,
In Australia, aftermarket automotive accessory shops carry heat proof exhaust paint .
You need to look in your own country for this. its around $25 - $30 for a spray can of the stuff.
Be sure that that the paint you do end up using will survive the exhaust pipe temperatures. VHT is a brand I can recall.
I have owned cars that the headers glowed red nears the head, in the dark after a good long run.The paint needs to be heat proof.
Grahame
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12th Jul 2019, 09:51 PM #10New Member
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Many thanks for the replies!
Previous owner did a engine revision: new clutch plates, clutch springs, oil,new spark plugs. new light as it was damaged. Enough thread on tyres. Just a slide damage with exhaust and side panel was not fixed....
This "old" bike just drives soo nice =) compared to my old RGV 250 Suzuki.... RGV drives nice but not nice for some quiet driving around...
Hmm, creatively thinking..... Damged spot is at the backseat side. The temperatures should be well under 100 degrees. I think I am going to try some oil to cover the rusty places, then a patch of high temperature resistant aluminium tape
It's just to expensive to replace the exhaust completely. It costs about 300 euro. The bike was totally 975 euro... =(
Possible cheap fix???
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13th Jul 2019, 08:05 AM #11New Member
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Today I asked a motorcycle sales person / "mechanic"?. He said it will take ages to rust through. On the internet I read when metal becomes warmed / heated it will rust faster. So, I decided to buy a can of primer and paint can that protects against heat (radiator paint. So I am going to try the advice that someone suggested.
Better sure then sorry!
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12th Mar 2021, 04:54 PM #12New Member
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Did it worked and what is the name of this paint
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14th Mar 2021, 06:49 AM #13New Member
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Hello,
It is an rust converter paint (Brunox primer) on the spot, then I paint it over. But the rust inside cannot be reached completely. It is showing a bit of rust through the paint a bit.
Although not perfect it will slow down the rusting through.
Many thanks for the help so far.
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14th Mar 2021, 09:49 AM #14
Another tip
Not that this will help you with a CB750, but I thought I'd chuck this in for 'general consumption'. Many later zorsts have a cylindrical stainless steel outer over the muffler section, they often get scratched.
A nice cheap way of fixing, is to get a short length of stainless stove flue, cut off the scratched one and rivet or screw on your new polished up flue.
You'll probably need to cut a section out lengthwise and tighten up the radius to suit, -easy. The one I made for my '89 Suzi GS500 looks like new.
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15th Mar 2021, 07:10 AM #15New Member
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Aah yes, that would be a good way to fix it. not thought about that. Actually I hope i will not have to fix my muffler anytime I have my current motorcycle. It is the only good transportation I have. ^_^) Apart for my trustworthy foldable bikes. But that takes like 4 or 5 times the time to get to my work....(30 min vs 2 hours plus)
Thank everyone for the replies. Appreciated!
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