Yamaha Command Link Wiring Diagram. Manual by assuming that the parts are installed and set up on the outboard motor. From the wiring colors you mention i am sure its a standard mf speedo.
2000 2004 yamaha outboard motor service manual myboatmanual. Yamaha outboard serial number and model identification. At this point the motor runs, but has no overheat/oil pressure alarms, hour meter or trim indicator.