Stock exhaust baking right foot & leg - Road Glide Forums
Intake and Exhaust Intake and Exhaust Systems for Road Glides

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post #1 of 16 (permalink) Old 03-05-2019, 10:47 AM Thread Starter
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Stock exhaust baking right foot & leg

I have a 2017 with stock exhaust system, I have noticed that after about 30 minutes of riding that my right foot and leg gets very hot and becomes very uncomfortable. Has anyone else experienced this ? I have inspected the exhaust system and do not find any leaks or issues? Any help would be appreciated.
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post #2 of 16 (permalink) Old 03-05-2019, 01:15 PM
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Howdy, from south central Kansas, near Hutchinson. Our group that rides to Arkansas twice a year rolls right near you as we head down US 400.

Your post caught my interest, as I ride a stock 2017 RGU, and before making that purchase, I had read about changes that were intended to give less heat on the rider. Liquid cooled engine, automatic switching to only one cylinder in traffic at idle in hot temps, and moving the catalytic converter back towards the rear. I was a bit surprised to note how warm things got on my right leg, much more than I expected.

I never had any plans whatsoever to change away from the stock exhaust, so I guess I just accepted that maybe my memory of how warm things got on my previous bike, a 2003 RK Classic, were worse than I remembered, or that it must just be the catalytic converter that I didn’t have previously. But your post makes me wonder what other comments might be out there. The only thing I recall seeing here on the forum was that the passenger would cook from the converter unless it is cut out or eliminated with a different exhaust system. I guess I was expecting to feel much less heat than I actually do, so I feel the same heat you do. I didn’t bother asking the dealer about it, figuring I’d just be reminded that I am, after all, wrapping my legs around a combustible engine and exhaust, but I admit I was a bit disappointed.

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post #3 of 16 (permalink) Old 03-05-2019, 01:37 PM
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It's the catalytic converter that is getting hot. There are a few ways to deal with it depending on possible warranty issues down the road. S&S sells a 2into1 exhaust system that moves the CAT into the muffler(slip-on) thus moving the heat back away from the rider and passenger. HD also has a full exhaust system that does the same thing. Both of these options would keep any warranty intact. If you want to chance warranty issues you could just remove the CAT all together or buy a new CAT-less exhaust system. A lot of dealers are still taking care of the customer in this case but you do run the risk of a dealership saying that you have voided your warranty if you remove the CAT from the bike. There will be many opinions and variations on what I have just said but this is it in a nutshell. There will also be tons of opinions on weather or not removing the CAT actually voids your warranty but that is between you and YOUR dealer and not someone else's situation.
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post #4 of 16 (permalink) Old 03-06-2019, 09:53 PM
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It's the catalytic converter that is getting hot. There are a few ways to deal with it depending on possible warranty issues down the road. S&S sells a 2into1 exhaust system that moves the CAT into the muffler(slip-on) thus moving the heat back away from the rider and passenger. HD also has a full exhaust system that does the same thing. Both of these options would keep any warranty intact. If you want to chance warranty issues you could just remove the CAT all together or buy a new CAT-less exhaust system. A lot of dealers are still taking care of the customer in this case but you do run the risk of a dealership saying that you have voided your warranty if you remove the CAT from the bike. There will be many opinions and variations on what I have just said but this is it in a nutshell. There will also be tons of opinions on weather or not removing the CAT actually voids your warranty but that is between you and YOUR dealer and not someone else's situation.
Doesn’t Harley sell a fan or what about Love Jugs (or am I thinking about something else)?

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post #5 of 16 (permalink) Old 03-07-2019, 07:10 AM
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Doesn’t Harley sell a fan or what about Love Jugs (or am I thinking about something else)?
Yes HD does sell a fan that mounts down behind the rear cylinder that is supposed to blow air down and away from the rider and passenger to help with the heat from the CAT and the heat from the rea exhaust header coming out of the cylinder. How well it actually works I don't know so someone that has it will have to chime in on that. The Love Jugs mount to the horn bracket on the left side and blow air on the heads to help keep the engine from over heating in traffic situations but does nothing for the heat from the CAT. It is very effective for what it is designed to do though.

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post #6 of 16 (permalink) Old 03-07-2019, 08:09 AM
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Doesn’t Harley sell a fan or what about Love Jugs (or am I thinking about something else)?
Harley does. It hides away behind the engine and sucks air in the hot leg area and blows it on the ground. I bought it on a whim before going to a rally with a parade. The parade is about 10 miles of 10 mph. The year before the bike was so hot I was worried about damage. I was surprised how well it worked. The leg was only hot, but I could keep my foot on the floor board. I'm going to keep it on even after I get the cat out.

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post #7 of 16 (permalink) Old 03-07-2019, 08:36 AM
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Harley does. It hides away behind the engine and sucks air in the hot leg area and blows it on the ground. I bought it on a whim before going to a rally with a parade. The parade is about 10 miles of 10 mph. The year before the bike was so hot I was worried about damage. I was surprised how well it worked. The leg was only hot, but I could keep my foot on the floor board. I'm going to keep it on even after I get the cat out.

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I can see where it would benefit the rider/passenger but it will do very little to keep the engine cooler. Sure it will pull some of the hot air away from the rear cylinder but the actual temps of the engine (metal parts) will remain high unless you direct a cooler airflow directly to the engine such as riding at higher speeds or by the use of fans like the Love Jugs. In short, HD fans benefit the rider while Love Jugs benefit the engine. Two different purposes.
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post #8 of 16 (permalink) Old 03-07-2019, 10:27 AM
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Originally Posted by Bowling Ball View Post
I have a 2017 with stock exhaust system, I have noticed that after about 30 minutes of riding that my right foot and leg gets very hot and becomes very uncomfortable. Has anyone else experienced this ? I have inspected the exhaust system and do not find any leaks or issues? Any help would be appreciated.
I pulled the chrome exhaust guards off and wrapped my header pipe and that area of the exhaust where the cat lives with exhaust header fabric. Secured the fabric wrap with stainless steel zip ties and put the guards back on over it all. My leg still gets hot but it did help some.
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post #9 of 16 (permalink) Old 03-07-2019, 10:29 AM
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Originally Posted by Bowling Ball View Post
I have a 2017 with stock exhaust system, I have noticed that after about 30 minutes of riding that my right foot and leg gets very hot and becomes very uncomfortable. Has anyone else experienced this ? I have inspected the exhaust system and do not find any leaks or issues? Any help would be appreciated.
i have the coolfan installed on my '18 FLTRX also and it does a great job of keeping my right leg cooler from thigh to ankle.
i don't ride in traffic that much, but when i do i'm surprised at how well it works.

it might just be me and the fact that i had an evo softail, but the M8 runs much cooler by comparison.
i think a lot of it is the oil flow around the exhaust port and higher oil pressures by design.

in any event, over the winter the fan switch came loose and disappeared on a ride.
supposedly there is a re-design of the switch that won't pop out under cold conditions.

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post #10 of 16 (permalink) Old 03-07-2019, 10:39 AM
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Stock exhaust baking right foot & leg

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Originally Posted by Smokey View Post
I pulled the chrome exhaust guards off and wrapped my header pipe and that area of the exhaust where the cat lives with exhaust header fabric. Secured the fabric wrap with stainless steel zip ties and put the guards back on over it all. My leg still gets hot but it did help some.


That will actually work well to keep the temps down but then you have the issue of the wrap keeping so much heat at the pipe that over time it makes it brittle and the pipe will start cracking. It's a damned if you do and damned if you don't kinda thing.


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