happy easter everyone. ok, i have a 2007 cbr 600rr that won't start. i just started having this problem a year ago. the battery is only a year old. i checked the fuses, starter relay switch, and ground connection all are fine.

 

If it won't turn over at all, check the clutch/side stand switches and the neutral indicator sensor.

Doesn't hurt to clean the starter button and kill-switch and re-lube with di-electric grease, as well.

Check back in if those tips don't do the trick.

Good luck, Ern

 

If it doesn't turn over at all then it is an electrical problem. Go around with a digital multi meter and check out all of relays and switches. Its the cheapest first option to fixing the problem. Better than just throwing parts at it

 

Explain exactly what is happening and you will get much more detailed engine.