Hey guys - some Tune ECU / mapping help if it's going... I have a 2008 690 Enduro with a Rottweiler intake and a low slung rally-style pipe (pic attached in case anyone cares). I put an EVO1 map on, with 2/4/6% maps and I'm currently running 4%. I set the F-L trim to 10,10,0,0 etc. and I have both the SAI and O2 sensor turned off. The bike runs well (never stalls) and pulls hard. Broadly speaking, I think it's probably running rich as the fan never comes on even if left idling for ages and the temp sensor never gets above 8 (definitely coolant in there before you suggest it). Anyway, I live pretty much at sea level but I'm riding to Morocco in a few months, and will ride up to 2500m+ so I'm a bit concerned about it running properly there. I read that the L maps are the only ones that the engine remaps to changing pressure/O2 etc, so should I return the F-L switch back to normal? If so, should I then alter the L maps? I never touched them since the switch change pretty much turns them off. I did think about turning the O2 sensor back on, but won't that just see the bike attempting to trim back to the high AFRs? Any advice greatly appreciated.