I own the later version the C90e Cub. If the kickstart isn't working then it can be a major job to fix. Best place to join is the Honda C90 group on FB (UK based but lots of C100, CM90/91 owners) David silver spares is best place for parts genuine OEM. They are in UK and in US. The engines are easy to work on. What you need is a complete bike with no major missing parts. Make sure it has the correct carburettor. As it's hard to source in complete condition. And if it's the electric start version that it works. The kickstart is likely a spring or at worse a stripped mesh gear. Both can be sorted. And ensure legshield is not split or missing. Near impossible to find as genuine OEM.