Suzuki gsxf 600 wont start

Chances are that the click you hear is the solenoid.. Try bridging the two terminals and if it turns its the solenoid. If Nada its the starter motor...good luck

Sounds like a bad solenoid...BUT - Make SURE the battery is fully charged!! - using a short screwdriver CAREFULLY jump the two big main threaded studs on the solenoid ..(wire from battery stud and the stud with wire going to the starter)(sparks WILL FLY so don't do this near open gas containers or fumes!!) .. when you jump the solenoid - if it tries to start, its the solenoid... IF not.. you need to check all the connections, have the battery checked by a battery shop to see if the amperage is up to snuff..(you can have 12+ volts but no amperage to push the voltage).. this would indicate a bad battery.
Do this, repost the results.

Have u tried boosting it?. if it works replace battery.

Get the self check it might needed some repair or replacement

If the clutch switch, the neutral safety switch, and the side stand switch are all working correctly, then test the starting system. When you push the starter button you should hear a click , so you know the button is working.Follow the positive battery cable to the starter solenoid. Disconnect the two wires that activate the solenoid, test the two wires from the harness make sure the needle on your voltage meter jumps when you push the starter button, this means the button is good. Take a wire and jump the two posts on the solenoid or touch the two cables together. If your starter works, then you need a new solenoid. If you hold the starter button and tap on the starter with a plastic hammer and the starter works you need new starter brushes. Anything else wrong with the starter and you need to replace the starter assembly , the manufacturer does not make replacement parts for the starter.

It sounds like the starter solenoid (you said rectifier clicking) may have burnt contacts. If you jump the solenoid with a piece of wire (touch the wire coming from the battery to the wire going to the starter ) and the starter works, it's a bad solenoid. If you hold the starter button and gently tap on the starter with a plastic hammer and the starter works, you need to replace the starter brushes.

Try putting power to the small red on relay, this actuates the solenoid, if power now goes to starter its OK (if not replace). Then check the Start Button contacts are good - check for continuity across it - & all interlocks (neutral / clutch & side-stand switches) work OK. Also check for continuity between the start button & starter relay + from relay to solenoid

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

Take a test light or multimeter and check if
power is getting to the starter each
time you push your starter button.

If so, the solenoid or starter relay is okay.

If not, then find the relay, it is at
the end of the battery positive wire.
It may be under the side cover or
under the seat.

Use your test light again and
see if power is on both sides
of the relays larger terminals when
you push your button (key on of course).
You should hear the solenoid or relay
click. It connects the positive
battery terminal to the starter
to make it run.

If it doesn't click or pass the power through
then check if power gets to it's
smaller wire when you push the button.
If not, could be the button, or
possibly something like a
bad side stand switch or engine
stop switch.

Hi and welcome to FixYa,

Initially, try with the sidestand folded up and / or the clutch lever pulled in.  Likewise determine if there is a clicking sound when the start button is pressed:

• if there is a clicking sound, locate the starter relay. Follow the big cable from the battery's + terminal; it would end in nother terminal of the starter relay:
  

1. turn ignition ON and kill switch to RUN;
   
2. short the 2 big terminals of the starter relay. Expect a big start. If the starter spins, startr relay is faulty.
   

• if there is no click, then the safety interlocks are preventing the relay from engaging. Check the neutral switch/wire and sidestand switch/wire.
  

It is of course assumed that the battery is fully charged and that the battery cablles/connectors are clen and tight.  Postback result(s) of tests.

Good luck and thank you for asking FixYa.