R1100GS - Lamda sensor.....where the hell is it?!

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Joined
Jan 27, 2014
Messages
670
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Location
Durbanville
Bike
BMW R1100GS
Hi Guys

When removing my 1100GS's exhaust, I discovered that there is no probe/sensor (Lamda sensor) that goes into the CAT!  Is this normal for 1100's? Or is the sensor insatelled elsewhere?My bike is a 1994 model (the first model 1100) and was destined for the Japanese market. I have read a post on another site, of a dude that said his 1997 1100 did not have a lamda sensor either. Some opinions were that it depends on the country of destination's emission laws...?.
I intend to install a Y-piece and aftermarket exhaust. I am now wondering.....if there is no lamda sensor, do I still need to "de-code" (pulling the plug under the seat) to make the bike run richer?

Your advice will be highly appreciated.
 
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