I don't know so much of other manufacturers, but Yamaha is making it almost impossible to "do it yourself" on any of their newer motors. Unless you have thousands to spend on diagnostic equipment, you are pretty much at the mercy of the dealer if you can't figure it out for yourself. Seloc manuals can be of some help, but you need to spend $ on testing equipment. Gone are the days of "got spark?" You can have spark all day, but if one single tiny "sensor" malfunctions, and there are MANY, you may spend hours and hours and still not find the problem. Unless you have service manuals, and diag. equipment.
oh, and I burned out my water sensor on the fuel filter with improper testing procedure, oooops, now if I don't unplug it, the alarm sounds in neutral, but stops when in gear. I don't even want to mention how much that little doohicky costs, omg. Parts are truly outrageous, but who am I telling? You all know that.
It really is a bummer, sitting here in the 90 Degree heat not able to take a cruise in my broken down barnacle barge. I am dreading the "trailering of shame" into the dealer, it has just about come to that.