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Exhaust heat wrap - yes? No?

Started by 86FJNJ, July 12, 2025, 03:52:37 PM

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86FJNJ

I'm sure it's been discussed but couldn't find it.

I don't see many photos or discussions around exhaust heat wrap on FJ's headers so I'm guessing it's not encouraged... but I'd like to know everyone's thoughts about it. I've seen it used on 1250 legend cars so clearly some people use it.
1986 FJ1200 converted to Fuel Pump

Pat Conlon

No heat wrap on these beauties...



You know that all the '86-95 FJ single wall header tubes are stainless steel?
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

captaudi

Pat,

Are the double wall pipes stainless? I just ordered a set that I am hoping to make nice and shiny.

Daniel
93 FJ1200 FZR1000 wheels, Vance and Hines SS2R, Hank Scott jets R1 Monoblocks. Cartridge forks in the works.

1985 RZ350 couple mods

red

86FJNJ,

I have heard of riders getting the exhaust pipes ceramic-coated, either clear for polished pipes or in colors for personal preferences.  Holds in the heat, protects the pipes from oxidation, maybe other benefits.  I have not tried it, but you might want to check out the results with those who tried the ceramic coating approach.
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

86FJNJ

Thanks for the input. I plan to use some exhaust wrap where my slip ons meet my collector because I have a slight leak even after changing the gasket so going to put some heat wrap around it. Since I'll have extra heat wrap just wondering if it was worth wrapping the headers. I def don't want to spend money on ceramic coating these pipes just figured if the engine ran any better or cooler from it I might try it.
1986 FJ1200 converted to Fuel Pump

Pat Conlon

I did the Swain Tech "White Lightning" coating on my collector box, it seemed to help.

Dan, the 1984/85 FJ's had a double wall header tube with a black chrome finish. They are not stainless.
Be very careful with the black chrome on those tubes, the chrome coat is thin, when scrubbing off the cooked on bugs it's  very easy to rub through the coating. Don't ask how I know this....

Around 12 years ago, while on a FJ West Coast rally, 800 miles from home, my '84 the oem double wall header tube suffered a cracked inner tube. The bike had about 120k miles on it back then....the clanging noise from that broken inner tube was crazy loud....I thought I lost a rod....still that beautiful bike got me home.

After that I converted over to the '86-95 FJ single wall stainless tubes....and yes, I too like shiny things LOL.

Cheers

Pat
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

giantkiller

I had the stock down tubes on the 89 black powder coated. As well as the header of the supertrapp chrome ceramic coated. Both to maybe help the chin spoilers to last a little longer. And because it's supposed to help scavenging. I don't know if it really does. But I figured with both possibilities. It might be worth it.
86 fj1350r
86 fj1380t turbo drag toy (soon)
87 fj1200 865 miles crashed for parts
89 fj1200 touring 2up
87 fzr1000 crashed
87 fzr750r Human Race teams world endurance champion
93 fzr600 Vance n hines ltd for sale
Custom chopper I built
Mini chopper I built for my daughter just like the big 1

red

Quote from: 86FJNJ on July 12, 2025, 08:58:04 PMThanks for the input. I plan to use some exhaust wrap where my slip ons meet my collector because I have a slight leak even after changing the gasket
86FJNJ,
You can hide the bolt behind the pipe.  The car guys call this gadget an exhaust clamp:

Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

86FJNJ

Red, even with my clamps I still have a leak.
1986 FJ1200 converted to Fuel Pump

red

Quote from: 86FJNJ on Yesterday at 07:32:05 AMRed, even with my clamps I still have a leak.
86FJNJ,

Real duct tape (not the cloth crap) is a soft, heavyweight aluminum foil, with an aggressive adhesive.  Cut strips of this tape as wide as the clamp.  Wrap the smaller pipe to make it the same diameter as the other side of the connection. Then wrap the connection with several layers (at least) of the aluminum duct tape.  Install the clamp.  The clamp will crush the aluminum down into any crevices, and should make a good seal.  Tighten the clamp again, after some riding.

HVAC supply houses should have real aluminum duct tape, but call first.  I use that stuff for lots of jobs.
Cheers,
Red

P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.