I JUST BOUGHT A 1981 650 CB CUSTOM HONDA, INSTALLED A BRAND NEW BATTERY,SOME REG. MAINT. RUNS FANTASTIC, ONLY THE BATTERY DOES NOT SEEM TO BE CHARGING, I HAVE THE CHARGER ON NOW AFTER BIKE DID NOT WANT TO START WHEN I DROPPED IN AT A BUDS HOUSE, HAD TO CHARGE TO START BIKE, ALL FUSE ARE GOOD ANY SUGGESTIONS WHERE TO LOOK BIKE HAS SAT FORTOW YRS. HELP PLEASE AND THANK YOU. KEN S.