UPDATE YAMAHA GAUGES - REFURBISHED
My Yammy gauges were all messed up on this boat. Couldn't read them at all. UV rays got to them over the years. I decided to remove them, take them apart and refurbish them.
Picked up the new micro film for inside the gauges and multiple grade sand paper for the lenses thru amazon. If anyone out there has gauges that are in as bad a shape as mine don't be afraid to rip them apart.. whatever it takes to get to the piece of glass inside. The micro film is on both sides of the piece of glass. You just peel it off (both sides of glass).. remove the remaining glue with rubbing alcohol. Cut out same size micro film and place on both sides of the glass, throw it back together and sand the gauge lens down starting with course paper right down to super fine paper. It's worth the effort.. these Yammy gauges cost over $250 new and now I can read mine from 2 miles away.
in direct sunlight. Total cost for micro film and super duper sand paper = $22.00 ........... Youtube video show how to refurbish.
In my case I did not have to use a dremel to grind off anything. My gauges came apart by removing 2 screws for the lense.. 4 screws inside to get to the glass.