the 4 wire.red for ignition +12v,orange for +12v battery,black for grounding and white for tacho input. The 2 wire socket for shifting light.Becoz it using led type be sure you connect this 2 wire correctly.Otherwise it won't light....
sorry for the mistake.......
I need some suggestion or advice if i want to add on turbo kit for my Silvertop engine (4AGE-20V)!!! Please anybody have x;perience for this engine ... please tell me how much cost and what brand of turbo kit to...