The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: manxr65 on March 16, 2010, 04:37:45 PM

Title: exhaust cross over.
Post by: manxr65 on March 16, 2010, 04:37:45 PM

just a quick question , got my 79 r65 up and running good now and want to make exhaust change , do you need to have cross over pipe as i want to change to two single pipes
thanks

Title: Re: exhaust cross over.
Post by: montmil on March 16, 2010, 05:40:32 PM

Have at it, ManxMan. Lots of BMW bikes running sans x-over tubes. I've heard several different explanations for the tubes, ie: improved low end torque, better exhaust scavenging, less global warming, reduces plaque build up, blah, blah, blah ;D

Many of us are running sorta semi-missing crossover tubes due to rusted and leaking tube joints! If you plan to fit larger and more open exhaust pipes, you may need to play with the carburetor jetting.

Do post up some photos of your modified exhaust.

Monte