I have a 150txra Yamaha and can not find the isolator lead coming from the engine to charge battery. This 2002 model is suppose to have a isolator lead for this purpose. I am installing the dual setup with perko battery switch and the wire diagram with switch did not show a isolator lead. How ever the Yamaha rigging guide diagram shows a isolator lead from engine. NEED HELP ON WHICH WAY TO GO WITH THIS.
