Cut the cat

Topics related to the ownership, maintenance, equipping, operation, and riding of the R1100R.

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TracyPrier
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Cut the cat

Post by TracyPrier »

Hi all :)

Well I have managed to get my hands on a nice R850r. Due to fly down and pick it up next week.

Although this bike won't need much doing to it one thing I DO want to do is take out the catalytic converter element. I did this on mt 1100RT and it made several improvements to how the bike ran.

Has anyone else done this and where exactly is the cat element located in the exhaust box? This is a 1997 bike.

Thanks
Tracy
omg1010
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Re: Cut the cat

Post by omg1010 »

If you did it on your R1100RT then you probably already know where to find it. However what kind of improvements do you expect?

Regards
Oliver
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TracyPrier
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Re: Cut the cat

Post by TracyPrier »

Hi Oliver

I thought there might be a different layout on the 850.

Well to start with, cats are not a legal requirement here in New Zealand. When I removed the cat from the RT I noticed:

easier starting and smoother idle. The engine ran freer and did not labour as easily going up a hill. It went a little better and I got better gas mileage and the dreaded "surge" mostly disappeared

cheers
Tracy
omg1010
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Re: Cut the cat

Post by omg1010 »

Hi Tracy,

yeah, the cat is hiding in that big bulky block right before your rear tire. Same in the RT/R/GS and so on. Here in Germany the situation is different as any modification which leads to increased power, greater pollution, vehicle safety and so on needs to be approved and entered in the registration certificate ...

I for my part have changed the complete exhaust.

Good luck with your "surgery".

Brgds
Oliver
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