I recently purchased my 91 Legend L and last night after driving at night for the first time I noticed when my dash lights are on the instrument cluster lights up but none of the needles for the spedo, tach, fuel or temp light up. I tried the dimmer button but in only made the guages bright or dark. Has anyone had this experience? Are there bulbs in back of the guage cluster that only operate the needles? Or could it be fuse related. Any info would be great. I don't have a shop manual yet.