My tach drops to zero when the engine is turned to go to the right. I need help identifying the wire(s) that send the signals to the tach. My boat is a 2002 Hurricane Sundeck. Thanks, Bert
tach signal lead is green.<br /> if you dont have a genuine yamaha tach and harness check the signal at the adapter. I would suspect though something is pinced or chafed at the motor. check the ign lead for nicks or cuts.<br /> good luck and keep posting