To have the battery filled you would have to take it to a local motorist and they should be able to fill it for you.
Yamaha RD 250 LC RD 350 LC Engine Cooling Water Pump Cover Plate, 1 per sale
Yamaha RD 250 LC RD 350 LC Oil Tank Cap OEM
Footrest Front Rubber (Pair) Fits Yamaha RD 250 LC 80-82
Yamaha RD 250 LC 1980-1983 Athena Piston Pin Bearing
Yamaha RD 250 LC 1980-1983 [Athena Clutch Cover Gasket]
Clutch Plates Kit Set For Yamaha RD 250 LC 80-82