turn signals

[katman]

Still plugging along on my 75 rebuild. Installing front turn signals and had bought some spares for the
lenses. The ones I took off this bike have one wire coming out. The spares I bought for parts have 2
wires coming out. The signals look the same. Were the 2 wire signals off new bikes. Bike Bandit
shows just one wire for my 75,
Katman

[TOOLS1]

The second wire should be a ground. Most aftermarket turn signals need a wired ground, because they are made with plastic.
TOOLS

[katman]

Thanks Tools, but these aren't aftermarket. All wires are black, One set of signals has the one black wire,
the other set I bought has 2 black wires coming out. I am wondering if somone used the rears which have two wires and put them on a set of front stems. I'll use the one wire ones since that's what bike bandit shows for my year.

[shinyribs]

Do the two wire lights have dual element bulbs? Maybe they are wired for both turn signals and running lights,rather than just having an extra ground.

[Piute]

   I used double elliments on mine the winker wire was there already ,On a F2 there's a brown wire that just dead ends there(stock normal) but is a single male plug I put A double end on it and used for running lights up front,Now some after market lightsL.E.D.'s get way to hot for running lights in those plastic housing's.