K75 Rt - K-Bikes.com - Excellence in Motion
 
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post #1 of 6 (permalink) Old Aug 10th, 2010, 8:18 pm Thread Starter
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Join Date: Aug 2010
Location: Oshkosh, WI, USA
Posts: 3
Thumbs up K75 Rt

I love my bike however, in the heat of summer the engine vent on the fairing blows really Hot, right on my legs. Is there some air wings or such that can be attached so to route engine air elsewhere? In the cooler mornings or days it's great but not on hot days. Any suggestions would be appreciated.
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post #2 of 6 (permalink) Old Aug 10th, 2010, 9:03 pm
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Join Date: May 2007
Location: Belton, Tx, USA
Posts: 140
http://www.bakerbuilt.com/bbairwings/bmw.html

I have these on my 91 75RT. They move a lot of air and work best if your knees don't touch the fairing.

I also added extra insulation under the tank and the kneepads.

I insulated the fuel lines and stuffed foam insulation in the cracks between the tank and fairing.

These mods have made the bike bearable in TX.

Ron Cooper

91 K75RT
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post #3 of 6 (permalink) Old Aug 10th, 2010, 9:35 pm
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Join Date: Nov 2007
Location: Holden, MA, USA
Posts: 172
What 75RT said. Until you get some of that stuff done, the heavier your riding pants, the more comfortable you'll be. Denser fabric will keep the engine's heat from roasting your legs medium-well. Even good quality knee armor makes a difference. Don't forget some of the heat on your left leg is coming from the muffler.
Steve
1990 K75RT
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post #4 of 6 (permalink) Old Aug 10th, 2010, 11:35 pm
PsyKotic Waterfowl
 
Join Date: Aug 2006
Location: Seattle, WA,
Posts: 1,328
Take some bubble-backed foil insulation and run it over the area under the tank and down the sides of the engine and back under the side covers and seat. That will help.

One of the flaws in the K bike design is that the fuel return line from the fuel pressure regulator runs behind the radiator and heats the gas as it returns to the tank, making the tank hot. Knee pads can help. Some models/years had insulation (part number 13311461507) on the fuel return line to mitigate this. There is also insulation available for the fuel rail - part 13531460584.
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post #5 of 6 (permalink) Old Aug 11th, 2010, 8:49 pm Thread Starter
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Join Date: Aug 2010
Location: Oshkosh, WI, USA
Posts: 3
Quote:
Originally Posted by 75RT
http://www.bakerbuilt.com/bbairwings/bmw.html

I have these on my 91 75RT. They move a lot of air and work best if your knees don't touch the fairing.

I also added extra insulation under the tank and the kneepads.

I insulated the fuel lines and stuffed foam insulation in the cracks between the tank and fairing.

These mods have made the bike bearable in TX.
Thanks for the info. I've Baker wings on a Honda. This is my 1st Beemer and I'm learning.

Mary
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post #6 of 6 (permalink) Old Aug 11th, 2010, 8:50 pm Thread Starter
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Join Date: Aug 2010
Location: Oshkosh, WI, USA
Posts: 3
Quote:
Originally Posted by FlyingDuck
Take some bubble-backed foil insulation and run it over the area under the tank and down the sides of the engine and back under the side covers and seat. That will help.

One of the flaws in the K bike design is that the fuel return line from the fuel pressure regulator runs behind the radiator and heats the gas as it returns to the tank, making the tank hot. Knee pads can help. Some models/years had insulation (part number 13311461507) on the fuel return line to mitigate this. There is also insulation available for the fuel rail - part 13531460584.
Thanks for all the info. This is my 1st Beemer and I'm learning.

Mary
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