Pulsing alarm every other second after 2 or 3 minutes of operation. I have read several other posts about the alarms to determine that the alarm indicates a VRO problem. I purchased an infrared thermometer to test temp of heads and found them to be inline with specs to make sure alarm wasn't for that. When alarm sounds, pumping the oil line primer bulb silences alarm for another couple of minutes before repeating. I've inspected the oil lines and can't find any holes/tears/problems with anything. My question is do I start replacing the line and primer bulb or simply disconnect and premix? Could it be a problems with the pump itself? Is the alarm sensor before the pump indicating that oil isn't making it to the pump or after the oil is added to the fuel indicating that the pump may be malfunctioning?
Any help/advise is appreciated.