What causes motorcycle exhaust pipes to blue?

There is a simple reason your motorcycle exhaust pipes might have turned blue. Essentially, the metal becomes discolored as a result of the heat of the exhaust going through the pipes. … Heat turns chrome blue, but if your exhaust pipe is made of stainless steel, the excessive heat will turn it golden color.

How do I stop my motorcycle pipes from bluing?

One thing you could try is painting the inside of your exhaust with a ceramic coating. There are products made for exactly this purpose and they will help prevent future bluing in any well-tuned bike.

Why are my motorcycle pipes turning blue?

Motorcycle exhaust pipes turn blue as a result of extreme heat passing through them. This is usually caused by the motorcycle running lean, meaning there is too much air and too little gas being mixed together which causes a higher temperature to pass through the exhaust pipes.

How do you keep stainless steel heads from turning blue?

All of the stock pipes turn blue. Repop stainless pipes turn golden brown. You can polish them with Blue Away or polish them more with Mother’s or Simichrome polish and get rid of it, but it will come right back.

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How do you clean Harley exhaust pipes?

Removing Grime

  1. Combine 1 tbsp. of motorcycle cleaner with 1 gallon of hot water. …
  2. Wait until your exhaust pipes have cooled, then hose off your motorcycle to dissolve the initial layer of dirt. Focus on the pipes, hitting them with water to remove grime.
  3. Work over the pipes with a tack cloth dipped in your soap solution.

How hot do motorcycle exhaust pipes get?

Combustion exhaust gas temperatures can be in excess of 1000 degrees C, but are typically about 800 degrees C. Heat is dissipated as it goes back through the exhaust pipes, but not by all that much. The cans will usually be hot enough to burn you too, but should be at a lower temperature than the rest of it.

How do you clean chrome exhaust pipes?

First, try oven cleaner. It works on baked-on grime in your oven, so it will also work on baked-on grime your pipes. The pipes need to be warm to hot, so leave it about 15 minutes after a ride. Spray on, leave about five minutes and wipe off with a rag, careful not to burn your hand.

Why do chrome headers turn blue?

The blue comes from a lean condition that heats up the pipe and turns it blue. A trick I used to use on the bikes (and not all of tem have heat shields) was to spray some Bar-B-Q paint in the pipe, and let it cure.

How do you remove chrome from exhaust?

Use sodium hydroxide (lye) to strip chrome from ferrous metals and carbon steel.

  1. Mix 8 to 12 fl ounces (about 227 ml to 355 ml) of sodium hydroxide with 1 gallon (3.785 L) of water in a vat made of neutral material (like a heavy-duty plastic bucket).
  2. Soak the chrome-plated object in solution until chrome comes off.
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How do you keep chrome exhaust pipes from turning blue?

There are many different cleaning products and polishes that are designed specifically for getting rid of the exhaust bluing. One example is Blue-Job Metal Polish. With this polish you use the included applicator cloth and a little water to make a paste out of the polish then rub it across the pipe.

How can I make my stainless steel exhaust blue?

It is a trademark of titanium exhausts but can easily be achieved on stainless steel as well. The blue discoloration is a result of extreme heat. If the metal is heated until it turns red, a blue color appears when it cools back down. Apply the polish with a rag and rub it in by hand.

Do stainless steel headers turn blue?

Depends on the alloy, some stainless will turn blue/purple around the header flanges….and eventually they headers will turn a dull grey color. They don’t stay pretty for very long, but the look better than old rusty steel ones.

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