Yes I did not think this was possible either but it's the only thing I can come up with. I figure there is a ground from the headlight wire somewhere but I haven't had time to trace it yet. Been working on getting it started since the plugs seem to foul out pretty fast.It runs for a bit then kind of...

When the light is switched off the idle is around 3000 but when I turn the light on it drops to about 1300 and has turned off a couple times from going so low.

So I bought a 1974 JD 400 340cc sled and while it ran fine at first, after replacing the recoil I broke on the third try, I have noticed that the sled dies down a lot when the headlight is on. I do not know why this happens. It isn't equipped with a battery so it is powered by the engine running. An...