I needed something to fidget with. So I figured I'd do some mileage and emission improvement on my K75. I'm going to install a Megasquirt fuel injection system, which has several advantages over the stock system. - Closed loop control: Adapts to changing conditions, such as altitude, and wear in the engine. I am installing an O2 sensor for this. - Improved fuel economy, also through closed loop: I can keep the AFR close to ideal during high speed cruise conditions, rather than the default, rich setting on the stock jetronic computer. - Future option to add ignition control, including spark advance and knock sensing. Increasing spark advance on a k75 is dyno proven to add power, and this will allow me to widen the advance curve, leaving a (relatively) retarded spark for idle. - Fewer expensive sensors: I can eventually dump the flapper type MAF sensor, although I may keep it. - Will be a direct plug in system, when finished. I sourced a connector that plugs into the EFI harness, so I can swap back to the jetronic computer with ease. The only thing missing will be the Throttle position switch, updated to a throttle position sensor. More details will be posted on the Motobrick forum: http://www.motobrick.com/index.php?topic=936.0 These are for offroad use only. However, I think the spirit of the law is satisfied with this: when done, there will be greatly lower unburned HC emissions, and less fuel usage.