2005 KTM SX 125 "65 wont shift gears" Questions

...65 sx gear shift wont select down my ktm 65 changes gear up the box no problem but when i come down the gears it goes down a gear but the shift sticks down and i have to flip it back up gently to ...

...65 sx I just bought it when we test rode it it ran good but we only took it to 3 rd gear then when rode it after getting it home the first time it went into 5th gear it got stuck there and wont ...