I am trying to take a proactive approach to maintaining my engine here in paradise, especially with the lead time for parts delivery, and I would like to know if there is anything I need to do to my VRO system as far as maintenance goes. This is a little embarassing but I have never trusted these things, especially since mine does not "sound off" when cranking to let me know that the buzzer at least works. I am having problems with my fuel bulb and I assume the oil bulb is the same age. I am going to replace it when I replace the fuel bulb but is there anything else I need to do? How can I ascertain if the warning buzzer is working and if not what typically can go wrong with them? All of the VRO engines that I have ever had any experience with sound off when they are cranking but this one has never done so. It runs perfect when it isn't starved for fuel so I know it is oiling but I don't know how I would know if it wasn't doing so properly. Ahhhhh..I can only dream of the day when I am wealthy enough to buy a pair (or even more!!!) of these new fangled 4 Strokes!!!!