GSA 1250

problem with the gear shift lever on a GSA 1250 I'd like to know if anyone has had this problem with the gear shift lever. It seems a bit loose (it feels like when engaging or downshifting, it doesn't return to the neutral position where it would be possible to engage a gear). To engage or downshift, I have to lift it to the level where the gear will engage. If anyone has experienced this or has any idea what it could be