FOZ1A wrote:It a Rickman z1075 with a custom loom.
Foz
You should have asked me when I was there, I could have sussed it with you.
FOZ1A wrote:Evening all! Last year I rigged up basic idiot lights, simple system with 3 led’s all earthed and feeds from neutral, oil and high beam. Worked but looked untidy, so I bought a micro led unit, but for the life of me I cannot wire it in, attached is a diagram hopefully someone can point me in the right direction. Also is there supposed to be 12 volts from oil/neutral feeds, the seller tells me that oil and neutral are negative feeds, but after 3 hours i have given up!!
foz
Maybe some description of the terminology will help you, so starting from basics (which may be boring and condescending, sorry)...
To operate a bulb there needs to be current flowing through it.
To make current flow there needs to be voltage connected.
On a motorbike, the voltage is supplied by the battery.
Current flows through the wires, the frame and the battery.
If you connect the + of the battery to a bulb, the other side of the bulb to the frame, and the frame to the - of the battery you create a circuit and current flows and lights the bulb. The route of that current is called the circuit.
Simple, but pretty useless as the bulb is always on, so we need to switch it to either give us a message (eg oil light) or at our discretion (headlamp).
From the description of the circuit above, you will see that if you break the circuit anywhere, the bulb will go out as current cannot flow.
Two descriptions have been used...permanent live and permanent neutral.
This refers to where in the circuit the break is put (we will use switches to create the break).
On the headlight, you connect the bulb to neutral permanently, but connect the + from the battery to the other side of the bulb via a switch, that's called switched live.
On an oil switch (or neutral) one side of the switch is always connected to neutral, via it's body where it screws into the motor (the motor is connected to the frame and - on the battery) - it only has one wire. You connect battery + to the bulb and the other side of the bulb to the oil switch which makes a connection to neutral until there is oil pressure. That is called switched neutral, or as your seller describes "negative feed", which is actually bollocks.
Because of the construction of neutral and oil pressure switches kn our bikes you cannot wire the idiot bulbs for those any other way (without relays, but we won't go there just yet).
If you understand that it makes what you need to do with your LED unit easier to understand. Call me if you want to.
