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I rode the 907 this week. Had a nice day yesterday and went to start the 907 and nothing. All lights come on, fuel pump charges up, and the starter solenoid will click faintly. I have installed a updated starter wiring kit a few years ago that has better wiring and connectors, so I took them loose and cleaned them up. I checked the battery with a load tester and took it by O'Riely's for them to check it and it is good. I tried jump starting from my truck and same condition. I took a battery from my BMW and same condition. I put a meter on battery side of solenoid and reading about 13.6 V. Press starter button and took reading on the solenoid on the starter side and getting same voltage. Took reading at the starter lug when pressing starter button and getting 13.6 Volts and nothing happens, just a slight clicking of the solenoid. Now I'm thinking the starter has gone bad.
What do you think?
du907

I have done some more test. Put jumper cable directly from battery to post on starter, nothing. I'm beginning to wonder if the starter is locked up. So I put it in gear with the clutch lever in pushed the bike across the driveway and let the clutch out. Then tried to start it and same results. Put bike on center stand and rotated the wheel while in gear, nothing. Then rotated the tire backwards and tried it and something tried to work but then back to same. So I believe the starter gear is locked to the sprag clutch. Now why this happened after a ride, beats me. Will be taking the side cover off and having a look.

Do you know if the brushes in starter motor has been changed? How many miles on the clock?

When in gear....if you rotate wheel forward the starter should not turn , if you rotate it backwards it should try to turn the starter .
I have just had this with my quad I , using a separate battery put the + to the frame and touched the - to the terminal on the starter to spin it backwards to un jam the sprag . The issue I had was that with the sprag jammed I could not use the pull starter as it would try to rotate starter tru all the reduction gears and just wouldnt do it .
What was happening was that as the motor was stopped it bounced backwards off compression and ( with a bit of wear ) locked the sprag ...however when I hit the starter button motor still spins ...starts and then overrides the jammed sprag and runs as normal . If I stopped the motor with the decompressor the sprag didnt jam
If your starter is locked by the sprag it will still turn and start the motor , if it is jammed internally it will draw a lot of current and you will get lots of sparks when you put battery cable to the starter terminal . Sounds to me like you probly just need a new set of brushes . If so remove the brush plate assy so you can eyeball it and then go to Ebay and look at the Suzuki LTF4wdx starter brushes ....there are two types of starter ( this starter is very common ...sometimes the mounts change but the internals are the same )but one of the brush plate assy's will look identical so just eyeball them and go . I have used 3 of these Chinese brush kits and one whole starter refurb kit and there is nothing wrong with them . I think that pretty much ALL the brushes you can buy will be Chinese regardless of how they are packaged or supplied .