Re: Tach and temp
Both gauges require 12 volts (on when the key is on), ground, and sense. Gauges shold be marked. If you want lights, tap into the light switch or hook them to the switched 12V lead. They will light any time the key is on. 12V, sense and ground for the tach are available at the connector just under the key on the control box. The sense line for the temp gauge connects to the temp sensor on the engine. The tach harness is available here on iBoats or at Cabelas. Or make your own.
