The magneto is in a compartment in the lower front-left of the engine where the magneto's wires come out; blue, white, and black. The blue connects to your CDI's blue wire, and the black to black. The white wire is a low-voltage wire intended to provide 6V for a headlight...don't use it; once you determine that the magneto works, it is recommended that you cut this wire off where it connects to the coil to avoid it shorting out or being any other type of nusence. The kill-switch's wires should be connected to the second set of female-connectors on the CDI wires...it doesn't matter which wire goes to which. If the kill-switch wires ARE connected, remove them for the second part of the testing procedure I suggested earlier. It is common for the magneto's compartment to become infiltrated by rain/snow-water which results it the fine wire of the magneto rusting and eventually breaking or shorting. It's happened to the best of us (me) many times. As I said, I'm pretty confident your mag's dead. You can get them on eBay for less than $12 delivered; I advise you to buy TWO and always have a spare (order another when one fails). Also, push some RTV into the white sheath and wire-hole to waterproof the compartment. Wickedest1 suggests duct-taping the seam of the compartment-cover too.