Hello After the winter I started bike today. The engine was working like few months ago before winter. It wasn't going too hot, just seemed that all is OK. But I noticed that I have no oil pressure on the gauge. I have this type an oil pressure gauge by V-twin: I have it mounted in this place where should be oil sensor but I have no sensor installed - just gauge. Before winter there were oil pressure on the gauge and now there is no. So I think that maybe just gauge is broken. I check oil screen and there is oil and the oil screen is also clean. It seems that the glycerin is in gauge. But I can only say that it seems because I remember that before there was an air bubble in gauge, now there is no air bubble. I do not know why. So I think that maybe tomorrow I will remove the gauge and will install oil sensor. Can you tell me how can I connect this oil sensor just for checking oil pressure. I didn’t use it before so I do not have light indicator. Can I just take 12V light bulb and connect from one side to oil sensor and from the second just to the + on battery. Just for testing not for riding? Or maybe can you give me other advices how to test oil pressure and this oil gauge. I think that oil is going through oil lines because after few minutes of engine work I can see some air bubbles in the oil inside the oil tank and the temperature of oil (I have an temperature gauge on dipstick) risen a little bit.