When the selector forks become worn, renewal is the only practical solution for a reliable gear change mechanism. Renewal of all the interfacing parts at the same time will provide a smoother more accurate trouble-free gear change.
Other related components you may wish to consider:
The only solution to poor gear selection are new forks.
Order all the gaskets, seals and bearings required for reassembling the engine and transmission at the same time and combine shipping costs to just one fixed price.
Try the same gasket seal used by trade professionals: 08C70K0234M.
Please note, this part may have other applications within the Suzuki range of vehicles.