kids bike (Castle Hall SK15)

26 inch tyres, about 8-9 years old, has not been used much but has stood in the bike shed for several years and may need a bit of TLC, cleaning/greasing chain, adjusting gears, etc. We wanted to try it out but one of the valves broke when we tried to inflate the tyres and haven't got spares so weren't able to test but was in perfect working order before it went into the shed.