Ducati put two lambda sensors in these Monsters and they try to run the bottom end of the power delivery from them, via a Siemens ECU. This inherently makes the engine feel unpredictable at the throttle – especially when cold or re-started hot. There’s no doubt, the engine just feels nervous at low speeds and part-throttle openings.
By switching off the lambdas, and disconnecting them, we have to reprogram the ECU completely in that area of its map otherwise it goes to a default setting. We can’t dial out absolutely everything, but can improve the throttle feel 99% by giving the engine the fuel (consistently) it need when it needs it – not when the lambdas perceive it needs fuel.
Ironically, in essence we give the engine an ‘analog’ feel, like a good set of carbs, rather than the switchy ‘digital’ feel that this stock setup delivers…