The last 2 times I was on the lake with my Pontoon I noticed that the volt gauge was barley hitting 12volts. And the tach was intermitant but mostly not working.Got a chance to check it out today. With the engine off I am getting around 12.3 volts at the battery with my meter. I start the engine and it reads maybe 12.5. Before when I was on the water the Volt gauge was always reading around 13.5. What are some of the testing procedures I need to do to fix this issue. Thanks!
