Re: Yamaha Fuel Management Gauge, Can't Read ###
If all that is wrong is the crystal is dull to the point you cant see through, then I gotta think the glass could be buffed out in some fashion. If there is an issue with the gauge itself, repairing is unlikley. Most newer gauges are self contained (cannot be opened) so servicing is not an option. Try e-bay; I think what you're looking for can be had for a couple hundred. Good luck.