My FZ8 SA 2012 will not start... it's cranking but doesn't fire. First the fault code was 12, crankshaft sensor defect, I did a check on the sensor with an ohm meter: it gave the correct value. I disconnected the bike from the battery for 10 mins, but when reconnected and trying to start the display now shows more errors: 12, 20, 30, 41. Where should I look now?