Oil light flashing?

[Turbo182]

I have a 2007 Nautic star and a little light is flashing underneath a symbol of a flask with a black oil drop, I checked my engine oil which is a 140 horse four stroke Suzuki and the Oil level is perfect and clean, The engine starts and runs perfectly! What is my problem, if anybody has any ideas please let me know!

[Seaduck]

Is it due for oil change. 100hr service light. Turn key to on position then pull lanyard out. Next pull red knob completely out and let go 3 times. That will reset it.