if you have an electronic multimeter, use the continuity test to check the clutch switch, you should have hopefully less than 1 ohm of resistence, or continuity with the clutch lever pulled in,
to check the sidestand same thing, with the stand up you should have continuity between the green and green and white wire at the sidestand switch connector (if your wiring color is the same as my 750)
the diode is located in the fuse box.
As for the diode its alittle more tricky, you need the diode function on a multimeter, to check a diode your meter will show open with the meter leads hooked up one way and then you swap the neg and poss leads on the same terminals and you will show a .5 to .6 volt drop, thats a good diode. You have 2 diode circuits in that diode so it will get a little tricky, as 2 terminals will show open in both directions.
Can anyone simplify that for me?