Fjr 1300 2003 heat on the left side - Page 2 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #11 of 38 (permalink) Old 07-16-2020, 06:43 PM
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I've owned three Gen 1s, they're all hot. Here's a suggestion, do a radiator flush. There's a good procedure on the Forum website. I'm currently riding an 04 (14A died) and I found the heat excessive. I drained the coolant and proceeded to flush the cooling system 3 or 4 times trying to remove all remnants of the old coolant. Once i refilled the system with new-fresh coolant and topped it up, the bike runs cooler (not a lot but enough to be noticable). You can also try insulation under the gastank, that should help a little bit too. Last suggestion, don't let the gastank get below 3/8, 1/4. Fresh fuel is stored underground where the temperature is a nice 53 degrees. Your nether region will appreciate you if you filler up with fresh-cold fuel.

I too looked at the procedure for insulating around the fairings. When I go the the part where it was suggested that I fabricate some small part out of aluminum I decided to abandon it and live with bike. Best of luck, they're fabulous bikes. The problems I've encountered are nothing compared to the miles of smiles I've enjoyed. Baz

If loud pipes save lives, imagine what learning to ride might accomplish.
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post #12 of 38 (permalink) Old 07-16-2020, 06:54 PM
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Quote:
Originally Posted by François Labbé View Post
Bernie,

Do you have exemple of this short widescreen modification? picture or video

Thank you
There are pictures of short screens scattered through this forum, but it would be a **** of a job to find them. You cannot buy a short screen, but several guys have cut down a standard screen themselves.

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post #13 of 38 (permalink) Old 07-16-2020, 09:13 PM
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Originally Posted by François Labbé View Post
Hi guys,


As you may know on this gen the engine heats the legs and the ballsack a lot. Especially on the left side, I've made couple of research looking for a fix and I found this old thread. https://www.fjrowners.com/forum/mess...tml?1063970531 in this very webside, but it is too old and I cant access the pictures and try the heat fix (redirect hot air toward the bottom of the bike) on my bike. I was wondering If one of you can help me, maybe someone made the fix and filmed it or has the pictures. I can endure the heat, but if the fix is not rocket science I'll go for it before buying a next gen.


Any imput is welcomed



Thank you very much
After a 100k miles on 05s, I found the lower heat not as bad as the tank heat. Try replacing the OEM insulation under the tank with aluminized bubble wrap from an auto parts. Make a huge difference in the ball warmer effect.
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post #14 of 38 (permalink) Old 07-17-2020, 01:47 AM
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Quote:
Originally Posted by François Labbé View Post
Bernie,

Do you have exemple of this short widescreen modification? picture or video

Thank you
Calsci makes an awesome windshield for our bike Francois. It has open holes in the front that removes the hot air on our chests and removes the back pressure. Not an exact fix for the heat issue on our first gen's, but may help you out. I just bought my '05 late last month, and it came with the factory windshield and another taller windshield. So I have not decided if I am going to purchase the Calsci poly carbonate shield. After watching how the other companies use and sell lexan, plexi, etc... was mind blowing what happens

https://calsci.com/motorcycleinfo/FJR1300prod.html
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post #15 of 38 (permalink) Old 07-17-2020, 02:50 AM
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I would believe that if the heat problem was on the torso. But the FJR has a nice shield vent (gap under the shield) to relieve pressure

2003 (Gen 1?) didn't have that.

Ridden wet. Put up hard.

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post #16 of 38 (permalink) Old 07-17-2020, 02:56 AM
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Point. I concede. Still hard time believing the low pressure behind the windshield affects airflow around the shins though.

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post #17 of 38 (permalink) Old 07-17-2020, 09:52 AM
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A push on the back at speed when the shield is all the way up. But that's about it. Heat on the rider is an air-flow-redirection thing. A little foil+bubble heat shield under the tank and some closed-cell phone stuffed into the gaps between the frame and fairing around the sides and along the bottom of the tank edges.


This example uses rock wool firewall insulation but I later replaced it with the lighter foiled-bubble wrap style.


https://www.fjr-tips.org/mods/insul/insul.html

Ridden wet. Put up hard.

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post #18 of 38 (permalink) Old 07-17-2020, 10:28 AM
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Fjr 1300 2003 heat on the left side

François Labb,

I went through and extracted all the links to the pix from the original post, and here are the working links that I got:

Template for cut out...
Template http://www.fjrowners.ws/forum/messages/6/10016.jpg

Fabricated part...
Part A http://www.fjrowners.ws/forum/messages/6/10017.jpg
Part B http://www.fjrowners.ws/forum/messages/6/10018.jpg
Part C http://www.fjrowners.ws/forum/messages/6/10019.jpg
Part D http://www.fjrowners.ws/forum/messages/6/10020.jpg

Mounting tab on engine for part...
Frame A http://www.fjrowners.ws/forum/messages/6/10021.jpg

Part positioned and mounted...
Frame B http://www.fjrowners.ws/forum/messages/6/10022.jpg
Frame C http://www.fjrowners.ws/forum/messages/6/10023.jpg
Frame D http://www.fjrowners.ws/forum/messages/6/10024.jpg
Frame E http://www.fjrowners.ws/forum/messages/6/10025.jpg

DO NOT REINSTALL AIR DIRECTION PANEL...
Panel http://www.fjrowners.ws/forum/messages/6/10026.jpg

Cutaway version of air direction panel...
Panel 2 http://www.fjrowners.ws/forum/messages/6/10027.jpg

Final assembly view...
Frame E http://www.fjrowners.ws/forum/messages/6/10028.jpg

This is one left side heat fix. There may be others, but I do not have a Gen1, so this is what I have found, so far.
There is a very different heat fix for the right side.
There is also a "heat blanket" fix that goes under the gas tank, to reduce heat on the rider's crotch area.
HTH.
.

Cheers,
Red
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- Pirelli Angel GT (Spec A) tires, RDL seat, TPMS, GPS digital speedometer (Amazon ~US$28.00).
P.S. Life is too short, and health is too valuable, to ride on cheap parade-duty tires.

Last edited by red; 07-17-2020 at 10:35 AM.
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post #19 of 38 (permalink) Old 07-21-2020, 10:52 PM Thread Starter
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Just did my first real 300km+ with my bike, I am so happy, it pulls like a train. First time riding with a windshiel, so weird to go 140-160kmh without the feeling like youre about to fly off. Not a city bike at all, but on the open road its so great. Looking foward to my 3000kms trip in august. Bought usb charger and throttle lock, ready to go. Appart from the heat this bike is so good.
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post #20 of 38 (permalink) Old 07-21-2020, 11:57 PM
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Heres an eBay link to a bubble wrap engine shield that I used on my 04. Wraps over the engine to below the seat. Worked well, but I still kept tank full on really hot days. Makes servicing the engine a tiny bit more difficult but worth it.
I also had foam stuffed like the pics, that plus touring boots helped.
https://www.ebay.com/itm/NEW-YAMAHA-...wAAOSw2s1UtJiM
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