BMW K bikes (Bricks)

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1Back to top Go down    Catalyst is out! on Sat Aug 03, 2013 1:40 am

metalist2006

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Hello friends!Very Happy
Need information on how to remove the catalyst, the engine was hard to breathe!
Photos and diagrams are welcome. Where better to cut and how best to cook? What's the material?Smile


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BMW k100rs 04/91
*-=o2o3o33=-*
    

2Back to top Go down    Re: Catalyst is out! on Sat Aug 03, 2013 7:52 am

Guest


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I don't think that my '91 has got a cat as there is no Oxygen sensor.
I did remove the cats from mine and my wifes R1100S's and was amazed at how much nicer the bikes were to ride.
Would it be worth just finding a second hand exhaust without a cat for yours?

    

3Back to top Go down    Re: Catalyst is out! on Sat Aug 03, 2013 8:51 am

RicK G

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If you can get someone who welds stainless steel then cut the exhaust open where it is next to the gearbox, you will find some porous ceramic material, crush it up and shake it out then weld the hole up.
Chances are that no one will see the welded part so no problems.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

4Back to top Go down    Re: Catalyst is out! on Sat Aug 03, 2013 12:10 pm

metalist2006

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RicK G wrote:If you can get someone who welds stainless steel then cut the exhaust open where it is next to the gearbox, you will find some porous ceramic material, crush it up and shake it out then weld the hole up.
Chances are that no one will see the welded part so no problems.

that's what I wanted to know. if there ceramics it easier, you can knock out a small hole. Oxygen sensor is not present, should be no problem. Can draw on the scheme as a catalyst located inside?Smile


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BMW k100rs 04/91
*-=o2o3o33=-*
    

5Back to top Go down    Re: Catalyst is out! on Mon Aug 05, 2013 3:51 am

MikeP

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If there's no Lambda sensor and no fitting for one, then it's a non-catalyst system.

    

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