Motorcycle turn lights switch to led
As noted in the comments, Flasher Load Resistors are wired in parallel to the led replacement lights, when using the original Flasher relay module. The flasher is probably a thermal one, and won't break because your led lights don't draw the current needed to heat it up to make it flash.



You should connect the load resistors between 31 the turn signal switch and Ground, one per turn line (Ch = Chocolate and Dg = Dark Green wires).


  Hey, I just installed one resistor (after the relay) and the indicator light (from the tank), number 20 on the above electrical sketch it is turning on and off all the time, even if I cancel the left or right signal. I don't understand why. Everything works find beside that. Can't figure it out why is this happening. – user3672802 Apr 3 '17 at 12:48


This happens because 20, the turn signal indicator, is wired in parallel with the flasher relay. By connecting the load resistor between 32 and 31, to ground, you provide a path to ground for both 32 and 20. This path to ground is normally through the turn signal lamps. With the path to ground, you get this behavior because the relay turns on, starts conducting, gets hot, turns off, so the turn signal indicator 20 turns on. As the relay cools down, it closes again, shorting out the turn indicator, turning it back off.

So again, put the load resistor after 31.

Or as the other answer says, buy a new, electronic flasher relay that's designed to work with leds or incandescent lights, without the need to use load resistors. Using load resistors defeats half the benefit of led lights, which is using less power.