A good friend of mine sent his older 3W80 twin in to Aircraft Inter. for upgrade to the new ignition modual and general check up. He gave me the engine today to get me back flying again. Anyway I have had other 3W engines in the past but the new ignition mod. has a couple of extra sets of wires that I am not sure about. I know the RED/BLACK is battery, 3wire lead is from pickup, the question I have is about the other two sets of wires. One is black and black wire, the other is Yellow / Yellow with white stripe. I don't know which set Y/YW or B/B is for tach - LED light and what the other set goes to. Also will this modual require a regulated switch for a LiPo 7.4 down to 6 V or will it handle the straight voltage.