Flybum
Well-known member
Found this site awhile back doing research to improve my sportster. They have a gauge/gadget for all you FI tuners out there that will help you fine tune your maps. Pretty sure it will work for the FJR too. Besides, the site explains how fuel injection works (wideband vs. narrow band injectors, open vs, closed loop). They also make custom turbo applications, mostly for harley but they do have a K1200 with a turbo. Anyway, air fuel ratio gauge looks interesting enough by itself for another gauge to add to the cluster. First link is to the gauge and the second is their home page. No affiliation...just thought it might help...and looks cool.
Air Fuel Ration Gauge
RB Racing
Air Fuel Ration Gauge
RB Racing