Error 12 on speedo changed crankshaft position sensor

Toxictics

New member
One day after riding for about 30 miles, I would come to a stop at a red light and my rpms would drop and come back up, and was wondering what was wrong. I got home turned my bike off then charged the battery (it died on me a few days before) when I went to go to school in the morning my bike wouldn't start and I have error 12 on my panel with the engine light on. I read that error 12 meant the bike wasnt getting signals from the crankshaft position sensor. I ordered an OEM CPS from Ebay and plugged in the wire and the magnetic end. Went to go start the bike and it still wouldn't start and error 12 was still on the screen. What could the problem be?
 
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