I have a 2007 granite cv713 with gray motor. It is low on power and speedometer is not working. Installed new speedo sensor, checked the ring in tail shaft. Installed new boost sensor. Before we installed new speed sensor, the lightening bolt would go off for very brief intervals and full power would kick it, but lightning bolt would come back after a few secco days and power would go away. The old sensor was pretty much destroyed and may have had both the wires inside touching sometimes. Not sure. Since we installed the new sensor, lightning bolt has not come on at all. Odometer not working. Speedometer not working but tach is working. Any ideas?
