2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 22Get this manual
IIGeneral information Ignition timing control
Control circuit diagram
Operation
Engine sta rt Accelerati on Over-revo lution Low oil pre ssure Overheat
Detecfon I
Engine temperature
Mcrocomp ter I
Positive start Quick acceleration
Ignition timing control (optimized ignition timing)
Engine speed
I Engine speed control
1Damage prevention