Applying diagram 3 to the z250:
First look for a car hazard switch of your choice, I didn’t bother w/ the exact model just told the sales guy to give me a car hazard switch w/ lots of pins at the back hehe, I’d prefer the push button type but the guys too lazy to look around...(don’t forget the female socket for it so you will not be soldering wires directly to the pins)
and gave me this, ok good enough..hehe.
then do some continuity checks to verify w/c pins go together
from left, 1st row w/ a slight reading regardless of switch position then probably a light indicator on the switch front (the red triangle mark), 2nd, 3rd and 4th rows w/ switch in on position, readings are ‘shorted’, in off position no reading in any combination w/ those pins, so that’s one set of switch w/ multiple throws, for the last row in ‘off’ no reading, in ‘on’ position w/ reading, so that’s another set of switch...
Remove front fairings to expose the front signal light wirings and connectors behind the ignition switch, rear seats and the right rear fairing to expose the flasher relay, temporarily disconnect the battery (+) or (-)
At the flasher relay connector, cut the black wire and connect the diode in series w/ it, the cathode (the silver band) facing toward the direction of the relay, so that w/ the ignition key off and switching the hazard will supply current only to the flasher relay and not to any other part of the bike