just wondering if someone has a riva tune file for a seadoo or any modified files? everyone claims riva gets better fuel economy but looking at the commanded af, i feel like seadoo is lean as is. i am used to automotive tuning tho, but the commanded af for a supercharged engine of any kind is normally richer than what i see in the seadoo tune. mainly mid throttle and rpm. so id like to see what everyone else is doing to the fueling. since there is no o2 sensor, im reluctant to even adjust it. guess youcould tap the exhauhst for one but w all the water in the exhaust idk how a wideband would work really lmao