Morning all.

Please cna somebody very simply and quickly explain what the mods are and what the effect is.

I have a bog standard tenere and might have a play with it but i do not want to mess up the MPG in any way as i use it everyday for a long commute.

I get a lot of surging when cruising around 4k and wonder if a mod will fix it?

I have tried to go the the Kev mods section on this site and it says i am not allowed.

Any ideas please.

Mike