surging boxer

flatspin · Post by **flatspin** » Mon Oct 08, 2007 8:17 pm

I wonder if any one has any ideas about surging below 3000rpm, the bike is a 2000 R1100s, remus exhaust K&N filter new plugs and recent service by North Oxford BMW did not do it before, at least not aware of it then. But very aware of it now. Also back fire on over run not all the time though. Otherwise bike goes very well.
Thanks Flatspin

plivez · Post by **plivez** » Tue Oct 09, 2007 11:30 am

There are quite a lot of posts re the surging.
Probably number two to vibes.

I cured it by doing the valve clearances. New air filter and balancing the injectors. Or maybe I just don't notice it anymore.

Daz555 · Post by **Daz555** » Tue Oct 09, 2007 11:44 am

My bikes in for repair tomorrow for exactly the same problem. - I'm also getting an additional problem with bogging down when the throttle is fully open.

plivez · Post by **plivez** » Tue Oct 09, 2007 12:36 pm

Thread here has a few suggestions:

http://www.bmwmoa.org/forum/showthread.php?t=17700

flatspin · Post by **flatspin** » Sun Oct 14, 2007 12:13 am

Thanks for the link will try some of the suggestions mentioned. It seems hat i am not alone with this problem

Daz555 · Post by **Daz555** » Mon Oct 15, 2007 10:14 am

Mine is now sorted - it was a faulty coil in the end. New coil and new plugs now has the bike running smooth as butter.