Replacing the Heat Shield Around the Exhaust

[yamahas]

Well I pulled off the exhaust cover to have a look at my donuts. I noticed that the heat shielding was in rough shape. The parts behind the tabs had gotten paper thin from vibrations that I decided to do something about it.
Since the gas tank sits right above it I wanted to make sure I fixed it up.

I went to the dealer looking to buy some and they informed me that I was not able to get the shields without buying the metal case around them. At about 70 bucks each (In Canada) I decided I would look elsewhere.

I went out and bought some adhesive heat shielding I could apply to the inside of the casing.

This what I did... (I only have the top side done so far)

As you can see vibrations where starting to take it's tole on the factory heat shielding.

I cut the old heat shield to take it out.

Using an old t-shirt (or any flexible material) make a rough template of the cover.

Transfer that template to the heat shield material. Remember you can always cut more of the shield out but you can't put it back together so make it a bit bigger.

With it cut you can now start fitting it onto the metal casing. I also started trimming the excess shielding.

Once you are happy with the shape it is now time to get the paper off the back to expose the adhesive side. I found it was easier to start on the flat side and only pull about 2" at a time and work it to the metal casing.

It should be the same process with the underside of the exhaust pipe. I just ran out of time today.

After one or 2 rides I will pull it apart to see how well or badly it is holding up and will report back. This stuff seems pretty tough and the adhesive seems like it would hold up well. Time will tell.

If anyone has anything to add please do it!

 

[cannondale27]

Nice!Where did you source the heatshielding from?

 

[yamahas]

Thanks, I got it from Royal Distributing. A company in Canada that sells a bunch of sled and ATV stuff.

 

[cannondale27]

This is a real issue.Replaced mine twice already.

 

[UP bushman]

Sent my heat shields to get White Lightning coated to SwainTech Coatings. I also sent my header and Aaen muffler so the complete system will be coated. I will post pictures when I get them back.

 

[yamahas]

Cannondale, Did you replace it with another yamaha one or did you source it from somewhere else? Agreed this is a real issue. I am hoping this will last longer then the factory shield.


Bushman, What does the coating do? And yes please do post up some pictures.

 

[UP bushman]

It's a .015 tan coating that reduces radiant heat. The tan color is all it comes in and is paintable. For example on an exhaust system it will reduce the surface temprature 35-55%. The plus side on an exhaust it keeps the inside exhaust temprature higher for better combustion. It only cost $200.00 to get both heat shields around flex pipes and the complete exhaust done from the heads to the muffler. Here is the website below for interest.

http://www.swaintech.com/store.asp?pid=10969

 

[yamahas]

That's cool, looks like a much more perminant solution as well.

 

[cannondale27]

Stock Yamaha.

 

[yamahas]

I just wanted to update this post, I had forgotten to do it before.

After hearing a few stories of other having problems with this type of heat shielding around the exhaust I decided I did not feel comfortable with it. I have gone back to the stock Yamaha heat shielding.

I had put a heat gun to the heat shielding and it had bubbled up, it caught fire with a torch. I was not comfortable with this under the gas tank and under me!

I think this stick on foil type heat shielding is better suited to protect plastics or a hood around an engine or something similar.