It's not as simple as just swapping the bulbs out. Your bike's lighting coil produces AC voltage and has no voltage regulator. In stock form the load from the headlight is enough to keep the voltage in check, with no load or the very minimal load that an LED puts on the system it's capable of producing way more than the 12-14v that the bulbs are designed for and will kill your new LEDs.
You at minimum need a voltage regulator, I've got these on a couple of my bikes keeping LEDs alive. They'll flicker at idle but it keeps them from burning up.
https://www.rockymountainatvmc.com/p...ge-regulator-p
Here's a thread detailing the more in depth route of adding a regulator/rectifier to provide the DC power that a motorcycle/automotive LED is going to be happier with.
http://www.3wheelerworld.com/showthr...ersion-for-LED