fsr 515 blue /yellow wire help

[Reedracers]

I have a 2008 fsr 515 and am trying to find the blue yellow wire to verify its status. I purchased this bike used and all lighting and speedo stuff has been removed. Ive lifted the tank and opened up all the wiring harnesses and cannot seem to locate these wires , where do they originate from ? I dont even have a blue/yellow wire out of the ignition module plug , do they come from somewhere else ?
Im trying to chase down why this bike stalls at slow speeds alot, I like to ride really tight stuff and am constantly reving to keep it running I was also thinking about adding a heavier flywheel weight if such a thing exists
any help would be appreciated
Dwayne