I have a pair of 2003 Yamaha F115s. I took the boat out today and the starboard tach just reads zero. Tomorrow I'm going to dig into it and was wondering if someone on GG might know where the signal wire is under the cowl and what color it is. That would give me a place to start. I have the standard round gauges and the zero that shows when you turn on the key is all I get. Any help or hints is appreciated.