Floscan's flowmeters don't work well with our 4 strokes with dual (low/high pressure) fuel pumps. The flow rate constantly fluctuates between 0 and whatever as the low pressure fuel pump cycles off and on. The total usage is fairly accurate, but the flow gauge is unusable.The Faria fuel management system might work better, since it has the ability to set the sampling interval to show the fuel rate and usage. By setting a long interval, it would compensate for the cycling of the low pressure pump. The Flowscan disclaimer can be read here
Floscan Instrument Co. Inc. and the Faria information here
http://faria-instruments.com/site_manuals/IS0125e.pdf
And of course, you can always use Suzuki's own SMIS systems and gauges. I use the SMIS adapter to feed data to my Garmin chartplotter via NMEA 2000 network, and readout engine functions from my DF150, including fuel flow and usage.