3 i5601E Digital Display 6LY3, 6CX 5. Use the down arrow and the right arrow to enter System Select. Note: Selections will vary based on System Options 6. Use the right arrow then the plus “+” and minus “-” keys to switch SYS Detect from Auto to Manual. 7. Press the back key and then the down key to select Engine. It will most likely show 6LY3. Press the right arrow and use the + key to select 6CX. When 6CX is showing press the back key. 8. Check the engine count and if incorrect use the arrow keys to correct the count. 9. Press the back key as required to return to an operating screen. © 2011 Yanmar Marine International • Rev. 2.0 3:14 Yanmar Electronic Control Systems Technical Manual