-Open your headlight casing, plug/unplug the bulb connector..
-Try to plug/unplug the connector that u see in the headlight (Spray abit if WD40, sometime the contact point not that good after years of usage/ exposure)
-Spray abit if WD40 Oso at the starter button
-My bike have this prob, I do as stated, works fine with me (Spec3 05)
-Check your main coolant radiators
-Check Reserve reservoir
-If your meter is not ori, it's possible tat it light up On/off
-Check your WaterPump Oso if it's working