My 2004 SV650s just died on me and refused to start, initally I assumed the battery had died so i replaced it, this seemed to fix the problem for a day or two but then the starter refused to spin again.
The symptoms were the ignition would come on and the fuel pump and lights seemed fine but pressing the starter resulted in just a single click from the starter solenoid (not the machine gun rat tat tat the solenoid makes when the battery is flat)
I tried bridgeing the starter solenoid with a spanner, not so much as a spark or a twitch from the starter, running a cable from the battery to the starters +ve bolt gave some small sparks but it was really corroded, i tried to undo the cable going to the starter but it just twisted the entire connector as it was rusted solid, but this seems to have effected a temporary repair.
I have a replacement starter coming from ebay and im considering getting a rebuild kit to fix the old starter as a spare
http://goo.gl/9RnZF
I just thought id make this post incase anybody else is pulling their hair out with what looks like a flat battery/clutch switch/solenoid problem but isnt, dont forget to check the sorry state of the rusted blob that was once the positive connection of the starter motor