Replacement 1999 Yamaha CY50 Riva Jog 50CC Factory Activated, Maintenance Free, Scooter Battery - 12V, 3Ah, UB-YTX4L-BS Replacement Battery for 1999 Yamaha CY50 Riva Jog 50CC Factory Activated, Maintenance Free, Sealed Lead Acid Battery Ready to install. No need to add acid. Leak free, sealed design prevents corrosion. One Year Warranty, Voltage: 12V, Capacity: 3Ah UpStart Battery Brand. On Sale for a Limited Time!