2021 Yamaha MT 125 (mtn 125-A) 0.1L Petrol · CF71 ECV

The most recent DVSA MOT test for the 2021 Yamaha MT-125 recorded a clean pass on 2026-08-22, marking a positive turnaround after a series of failures and advisories in the preceding two years. While the vehicle has not faced any defects since June 2025, the earlier history reveals a pattern of recurring issues, particularly around braking, drive chain alignment, and lighting. The drive chain advisory from 2025-06-06 suggests a gradual loosening that, if left unaddressed, could lead to increased wear on the sprocket, chain tensioners, and ultimately the drivetrain components, potentially causing premature failure or misalignment. The 2024 headlamp aim failure indicates a need for periodic re-calibration, which may have been overlooked or corrected since the last test, but buyers should confirm that the headlamps are now properly aligned to ensure compliance with road lighting regulations and to prevent potential glare for other drivers. The recorded mileage of 14,765 miles for a 2021 model represents a relatively low annual usage rate of approximately 2,953 miles per year, which is unusually low for its age. Such low mileage often correlates with periods of prolonged inactivity, particularly if the vehicle has been stored for extended durations, leading to potential issues such as standing corrosion, fluid degradation, and mechanical stiffness. The drive chain’s loosening and the previous brake pad wear failure suggest that the vehicle may have been subjected to either light but frequent use or periods of disuse without proper maintenance, which can exacerbate wear on critical components. Buyers should be cautious about the implications of low mileage, as it may mask underlying wear patterns that could become critical if the vehicle is later subjected to heavier loads or prolonged idling. Given the vehicle’s age and the history of maintenance issues, prospective buyers should conduct a thorough mechanical inspection to address the most pressing concerns. First, verify the drive chain’s tension and alignment during a test drive, listening for any unusual rattling or clunking noises, particularly when accelerating or shifting gears. A loose or misaligned chain can cause excessive wear on the sprocket and chain tensioners, leading to premature failure and potential drivetrain damage. Next, inspect the braking system, paying close attention to the rear brake pads, discs, and calipers for signs of excessive wear, corrosion, or binding. Check for uneven brake pad wear, which may indicate misalignment or hydraulic issues, and listen for grinding noises when applying the brakes, as this could signal metal-to-metal contact. Additionally, examine the rear brake lever for excessive play or resistance, which may indicate a worn or seized pivot. For the longer-term, buyers should also consider the potential for standing corrosion, particularly around the rear wheel arches, exhaust system, and undercarriage, where moisture and road debris can accumulate. Given the low mileage, the vehicle may have been exposed to prolonged periods of disuse, which can lead to fluid degradation in the brake system, engine oil, and coolant. Check the brake fluid level and condition, ensuring it is free from contamination or moisture, and replace it if necessary. Similarly, inspect the engine oil for signs of sludge or excessive contamination, and consider a full oil change if the vehicle has been stationary for an extended period. Lastly, verify the headlamp alignment and functionality, ensuring both front and rear lighting systems are in compliance with UK regulations. If the vehicle has been stored for significant periods, a comprehensive service check, including the timing belt (if applicable), spark plugs, and air filter, would be prudent, though the MT-125’s two-stroke engine may not require a timing belt replacement. Buyers should also confirm that the service book or records reflect any scheduled maintenance, such as the annual fluid top-ups and wear item replacements, to ensure the vehicle remains in optimal condition.