2020 Yamaha MT 125 (mtn 125-A) 0.1L Petrol · RE20 BVA

This Yamaha MT 125 currently holds a valid MOT pass issued on 3 June 2026 at 15,644 miles, though the maintenance trend over the preceding twelve months reveals a pattern of neglect rather than careful upkeep. The most recent test flagged an exhaust noise defect under item 8.1.1 (a), and this was not an isolated event. Just four days prior, on 29 May 2026 at the identical recorded mileage of 15,644 miles, the bike failed on the same exhaust noise item alongside an excessively loose rear drive chain and a rear tyre below the 1.0mm minimum tread depth. The fact that the mileage did not advance between the failure and the pass suggests the bike was retested without meaningful road use between attempts, and the exhaust baffle advisory from 2025 indicates a history of presenting the bike with a replacement baffle to pass emissions and noise checks. Taken together, the trend is one of deterioration followed by cosmetic remediation rather than genuine mechanical resolution. The mileage profile raises its own questions. Between the clean pass on 1 May 2024 at 7,276 miles and the failed test on 2 June 2025 at 14,828 miles, the bike accumulated 7,552 miles in just over twelve months, a sharp increase from the earlier pattern. Yet by June 2026 the odometer showed 15,644 miles, meaning only 816 miles were covered in the following year. The sudden drop in annual mileage from roughly 7,500 to under 1,000 miles suggests either a change in use or periods of prolonged standing, both of which carry implications for fuel system condition, tyre age-related cracking, and corrosion of brake components and exposed metalwork. A buyer inspecting this machine in person should pay close attention to the rear drive chain and sprocket set. The chain was flagged as slightly loose in June 2025 and excessively loose by May 2026, indicating either a rider who did not maintain chain tension or a worn chain and sprocket assembly that has reached the end of its serviceable adjustment range. Check forHooked sprocket teeth, stiff links, and uneven wear along the swingarm slider. The rear tyre was below the legal minimum in May 2026, so verify whether it has been replaced since and inspect the front tyre for age-related sidewall cracking given the low annual mileage. The recurring exhaust noise defect and the noted use of a baffle for test purposes warrant a thorough inspection of the exhaust system for corrosion, holed sections, and loose or degraded mounting brackets. Finally, with a registration plate lamp failure appearing in the 2025 record, check all electrical connections, wiring harness condition, and bulb holders for moisture ingress, particularly around the rear light assembly.