I recently bought a 2025 Honda Wave 125i LED from a dealer (Sinthanee in Chiang Rai) who doesn't offer the Honda warranty (normally one year). From day one, I had clutch problems: shifting gears was sometimes difficult. I was supposed to go to Chiang Mai the next day and didn't have time to fix the problem before my trip. Day after day, the situation worsened. Shifting gears became very difficult, and the gearbox became noisy, especially 2nd gear. Could anyone recommend a good mechanic who specializes in gearboxes? I think some parts need replacing (shift drum, shift fork, etc.). The motorcycle only has 4,000 km on the odometer. Thank you in advance for your help.